RRB NTPC Mock Test - 16 (English)

Ally means to merge or friend, opposite of enemy, likewise ancient is opposite of Modern.

Hence, Ancient : Modern is the correct answer.

• The processor speed of a computer is measured in MIPS because the processor works to give instructions.
• MIPS stands for Million Instructions Per Second.
• BPS stands for Bits Per Second. It is a standard way to measure data transfer rates.
• Baud is used to describe the maximum oscillation rate of an electronic signal.
• Hertz is the standard unit of measurement used for measuring frequency.

• Chucker is related to Polo.
• Chucker is a term used in Polo to define a time segment like halves or quarters in other games like football.
• The normal duration of chukka/chucker is 7-minutes after 7 minutes of play continues for an additional 30 seconds or until a stoppage in play.
• There are six or more chucker in one polo match.

Let the speed of the stream = x km/hr

Given,

Speed of the boat in still water = 50 km/hr

∴ Speed of the boat towards upstream = (50 - x) km/hr

Distance covered = 500 km

Time taken = 20 hr

∵ Distance covered = Speed × Time taken

⇒ 500 = (50 - x) × 20

⇒ 25 = (50 - x)

⇒ x = 25 km/hr

• Jaishankar Prasad was the author of the book “Kamayani”.
• Kamayani is a Hindi epic poem.
• It is considered one of the great literary works written in modern times in Hindi Literature.
• It also signifies the epitome of Chhayavai school of Hindi poetry gained popularity in the late 19th and early 20th centuries.

Consider the following least possible Venn diagram,

Conclusions:

I. All blue are yellow → False (It is possible but not definite).

II. Some black are yellow → True (It is definitely true as the part of blue which are yellow is also black as all blue are black).

Hence, only conclusion II follows.

• On 15 November 2000 Jharkhand became the 28th state of India, separated from Bihar.
• On 9 November 2000 Uttarakhand became the 27th state of India and was separated from Uttar Pradesh.
• On 1 November 2000 Chhattisgarh became the 26th state of India and was separated from Madhya Pradesh
• On 2 June 2014 Telangana was separated from the Andhra Pradesh to form the newly formed 29th state.

Total number of candidates = 120

Let the number of candidates who passed the exam be = x

No. of failed candidates = (120 - x)

Then total marks = 120 × 35 = 39x + (120 - x) × 15

⇒ 4200 = 39x + 1800 - 15x

⇒ 4200 - 1800 = 24x

∴ x =  2400/24  = 100

The relation among the given numbers is:

93 + 9 = 102

102 + 8 = 110

110 + 7 = 117

117 + 6 = 123

123 + 5 = 128

128 + 4 = 132

Hence, “117” is the missing term.

• Sri Lanka’s first satellite ‘Raavana-1’ was launched into space from NASA’s Flight Facility on Virginia’s east shore.
• The satellite was designed and built at the Kyushu Institute of Technology in Japan by two Sri Lankan research engineers.
• Its camera mission is to capture images of Sri Lanka and its neighboring countries.

1) MELAC → CAMEL

2) RITEG → TIGER

3) ROSHE → HORSE

4) UFBAFOL → BUFFALO

Except 'Tiger' all are herbivores whereas 'Tiger' is a carnivore.

Hence, 'Tiger' is the odd one.

Difference of consecutive terms: 2,3,4,5,6,7,8……

We can see that the difference of consecutive terms in the sequence are in AP with first term 2 and common difference = 1.

∴ n^th term of this sequence (1,3,6,10,……) is given as, a_n = a_(n - 1) + (2 + (n - 2)d), n ≥ 2.

Now, a₅ = a₄ + (2 + (5 - 2)1) = 10 + (2 + 3) = 10 + 5 = 15

a₆ = a₅ + (2 + (6−2)1) = 15 + (2+4) = 15  + 6 = 21
a₇ = a₆ + (2 + (7−2)1) = 21+(2+5) = 21 + 7 = 28

Now, a₆/a₇ = 21/28 = 3/4

⇒ a6:a7=3:4

• Gerontology is known as the study of old age.
• Gromatici is known as the science of surveying.
• Gynaecology is known as the study of women’s physiology.
• Gyrostatics is known as the study of rotating bodies.

Option 4 is the correct answer. As we see in the statement, Rajiv Sharma is dissatisfied with his salary and perks, So he joins another company. The inference I is about the new company giving good salary to all its employees, which is not mentioned in the statement. Hence, I does not follow here. The inference II talks about present company's condition about which no information is given in the statement. So, both inferences do not follow.

• Carbon monoxide is formed by a coordinate bond.
• A covalent bond is formed by two atoms sharing a pair of electrons.
• A coordinate bond is a type of covalent bond where both of the electrons that form the bond originate from the same atom.
• Carbon monoxide has two ordinary covalent bonds between the carbon and oxygen and also a coordinate bond using a lone-pair on the oxygen atom.

SI unit of Work is Joule.

Similarly, SI unit of Power is Watt.

Hence Power is related to Watt.

• The king of England Charles II got Bombay as dowry for marrying Catherine in 1661 AD.
• According to the marriage treaty of Charles II of England and Catherine of Braganza, daughter of King John IV of Portugal on 21 May 1662, placed Bombay in possession of the British Empire.
• Currently, Bombay is the capital city of Maharashtra.
• It is also known as the financial capital of India.
• According to the 2011 census, It was the most populous city of India.

• Keratin is a fibre protein. This protein is found in hair, nail, horn, wool etc.
• It also protects epithelial cells from damage or stress.

[(a^-2b³) ÷ (a¹b^-1)] × [(a²b^-4) ÷ (a^-1b²)]

Using BODMAS rule a^m ÷ aⁿ = a^{m - n}

[(a^-2b³) ÷ (a¹b^-1)] × [(a²b^-4) ÷ (a^-1b²)]

= a^{-2 - 1}b^3-(-1) × a^2-(-1)b^{-4 - 2}

a^-3b⁴ × a³b^-6

a^m × aⁿ = a^{m + n}

= a^{-3 + 3}b^{4 - 6}

= b^-2

= 1/b²

Given sinB = (5/13) = Perpendicular/hypotenuse

⇒ We know that (Hypotenuse)² = (Perpendicular)² + (Base)²

⇒ (13)² = (5)² + (Base)²

⇒ (Base)² = (13)² - (5)²

⇒ (Base)² = 169 - 25

⇒ (Base)² = 144

⇒ (Base) = √144

⇒ (Base) = 12

⇒ cosB = Base/hypotenuse = 12/13

⇒ tanB = Sin B/Cos B

⇒ tanB = (5/13)/(12/13)

⇒ tanB = 5/12

⇒ cosecB = (1/Sin B) = (13/5)

⇒ tanB + cosecB = (5/12) + (13/5)

⇒ (25 + 156)/60

⇒ 181/60

∴ Required value is 181/60

Let us assume the one of the numbers as x and the other as y,

⇒ x + y = 32    ---- (I)

⇒ x × y = 156

⇒ x = 156/y    ----(II)

Substitute the value of Eq(II) in Eq(I),

⇒ (156/y) + y = 32

⇒ 156 + y² = 32y

⇒ y² – 32y + 156 = 0

⇒ (y – 6)(y – 26) = 0

⇒ y = 6 or 26

Let us consider y = 6,

Value of x = 156/6 = 26

Factors of 6 = 3 × 2 = 2, 3

Factors of 26 = 13 × 2 = 2, 13

∴ HCF(6, 26) = 2

Given equation is 54 ÷ 6 × 2 - 10 × 4 = 82

Let’s check each option,

1. 54 ÷ (6 × 2) - 10 × 4 = 54 ÷ 12 - 40 = - 35.5 ≠ 82

2. 54 ÷ 6 × 2 - (10 × 4) = 9 × 2 - 40 = - 22 ≠ 82

3. 54 ÷ 6 × (2 - 10) × 4 = 9 × (- 8) × 4 = - 288 ≠ 82

4. (54 ÷ 6) × 10 - 4 × 2 = 9 × 10 - 8 = 82

Hence, (54 ÷ 6) × 10 - 4 × 2 is the correct option.

Sum of all the interior anglesof a polygon having 12 sides = 180(12 – 2) = 180 × 10 = 1800°

6 – 36 × 3 ÷ 6 + 5 = 6 – 18 + 5 = -7

∴ ? = -7

According to the given condition ,

90% of M.P = 125% of CP

∴ M.P = (1.25 × 600)/0.9 = 833.33

∴ The marked price of the camera would be Rs 833.33

A bunch is a group of the same things.

Similarly,

A group of sheep is called a flock, herd or mob.

Thus Sheep is related to Flock.

Speed of sound = 342 m/s.

Time taken for hearing an echo = 2s.

Distance travelled = 2d = v × t

2 × d = 342 × 2

d = (342 × 2)/2

= 342 m

• Infrasonic is the sound waves below the frequencies of audible sound i.e. below 20 Hz.
• Some animals like whales, elephants use these waves to communicate.

The frequency of sound waves are as follows:

• Ultrasonic: Above 20 kHz
• Audible range: 20 Hz and 20 kHz
• Infrasonic: Below 20 Hz

• Pingali Venkayya was the designer of the flag on which the current National Flag of India is based.
• The current version of Indian flag was adopted in the meeting of the Constituent Assembly held on 22 July 1947.
• The proportion of length and breadth of Indian National Flag is 3:2.
• Currently, Karnataka Khadi Gramodyoga Samyukta Sangha is the only unit in India that is authorized to manufacture and supply the Flag of India.

1) Rectangle represents LED.

2) Circle represents Inverter.

3) Triangle represents Solar.

4) Square represent Battery.

The letter that represents Solar and Battery but not Inverter i.e. letter that represents triangle and square but not circle which is the letter “E”.

Hence, “E” is the correct answer.

In figure (X), one of the dots lies in the region common to the square and the triangle only and the other dot lies in the region common to the square and the rectangle only. Only figure (D) consists of both types of regions.

Hence, figure (D) is the correct one.

We know that,

Distance = Speed × time

Total distance to travel = 1000 + 500 = 1500 m

Speed = 30 km/hr =30 × 5/18 = 25/3 m/s

Time taken = Distance/Speed = 1500/(25/3) = 180 second

• Bank of Maharashtra partners with M1Xchange for MSME bill discounting
• Trade Receivables Discounting System is a digital platform to support micro, small and medium enterprises to get their bills financed at a competitive rate through an auction where multiple registered financiers can participate.
• Mynd Solutions is a technology management firm which runs the TReDS platform of M1Xchange.
• The main purpose of TReDS platform is to facilitate the smooth flow of liquidity in the system and make finance available at a competitive rate.

Changing operators as given format.

Given expression: 18 + 16 ÷ 1 × 3 + 5 - 16 - 46 ÷ 23

After interchanging symbols: 18 × 16 ÷ 1 - 3 × 5 + 16 + 46 ÷ 23

= 18 × 16 - 3 × 5 + 16 + 2

= 288 - 15 + 16 + 2

= 288 + 18 - 15

= 291

Given series: HA, 9, FD, 8, DI, 6, CF, 6, BE, 5

The given sequence is a combination (pair of the alphabet, square root of their respective position number).

The pair of the alphabet is followed by the square root of their respective position number.

HA → It’s respective position number is 81 and the square root of 81 is 9.

Similarly, FD → 64 and 8 is the square root of 64.

DI → 49 and the square root of 49 is 7 but DI is followed by 6.

Hence, the wrong term is 6 which is placed after DI.

• The Central Office of the Reserve Bank was initially established in Calcutta.
• It was permanently moved to Mumbai in 1937.
• The Reserve Bank of India was established on April 1, 1935, in accordance with the provisions of the Reserve Bank of India Act, 1934.
• Shaktikanta Das is the current governor of RBI.
• Sir Osborne A. Smith was the first governor of RBI.
• CD Deshmukh was the first Indian governor of RBI .

• Harbhajan Singh is the first Indian bowler to take a hat-trick in test matches on 11 March 2001 in Kolkata.
• He got wickets of Ricky Ponting, Adam Gilchrist and Shane Warne.
• It was the 29th hattrick in test Cricket.
• Irfan Pathan is the second Indian bowler to take a hat-trick in test matches.

In our country, web series are getting popular day after day and people are finding it more interesting. Assumption I is not implicit because it is just a definition of 'web series'. Assumption II is not implicit because there is no information provided in the statement regarding people liking web series because of the uncensored content. 

Follow BODMAS rule,

1) ×, +, - ⇒ 17 × 13 + 6 - 2 = 225

2) ×, -, + ⇒ 17 × 13 - 6 + 2 = 217

3) +, -, × ⇒ 17 + 13 - 6 × 2 = 18

4) -, +, × ⇒ 17 - 13 + 6 × 2 = 16

Hence, correct set of symbols is ‘-, +, ×’.

∵ (a³ + b³) = (a + b)(a² + b² – ab)

⇒ 8125 = 25 × (a² + b² – ab)

⇒ (a² + b² – ab) = 8125/25

∴ (a² + b² – ab) = 325

On arranging the given word as per the dictionary order,

iii. Game

ii. Garage

iv. Garden

i. Gentle

Hence, “iii, ii, iv, i” is the correct order as per the dictionary.

Thus, the image that is formed after folding the paper is image D.

• Stem cutting is an artificial method of plant propagation.
• In this method, the stem of a heavy plant is cut into small pieces.
• Each cutting must have at least 2-3 short internodes with axillary buds.
• The upper end of the cutting is given a transverse cut to mark the morphological apex of the stem.
• The obliquely cut basal and then planted in the soil under a suitable condition for the formation of adventitious roots.
• This method of propagation is used for Sugarcane, Rose, Grapes, Tea, etc.

• The Moplah Rebellion of 1921 started in the Malabar district of Kerala.
• The Moplah tenants were Muslims and they agitated against the Hindu landlords and the British government.
• In the aftermath of this movement, the Suddhi Movement was created by the Arya Samaj.
• Sir C Shankaran Nair, a former President of the INC, criticised Gandhi’s support of the Khilafat Movement as one of the causes of the violence.

• Ajay Singh is the CEO of SpiceJet.
• Recently, Spicejet announced the signing of an initial pact for codeshare partnership with Gulf carrier Emirates.
• Code-sharing allows an airline to book its passengers on its partner carriers and provide seamless travel to destinations where it has no presence.
• SpiceJet passengers from 51 domestic destinations will be able to access Emirates' network across the US, Europe, Africa and the Middle East.
• Headquarters of Spice Jet are in Gurugram.

• Prime Minister Narendra Modi launched the Pradhan Mantri Shram Yogi Mandhan (PM-SYM) Yojana in Gandhinagar, Gujarat.
• The national pension scheme is for workers and laborers of the unorganized sector.
• It was announced in the interim budget in February this year.
• It will provide a monthly pension of 3000 rupees to the employees of the unorganised sector after 60 years of age.

• Annu Rani won the silver medal in women’s Javelin throw.
• India won five medals including two silvers on Day 1 at Asian Athletics Championship
• India opened their account at the 23rd Asian Athletics Championship in Doha, Qatar on when Parul Chaudhary bagged a bronze medal in the women’s 5000m race.
• Avinash Sable won a silver medal in men’s 3000m steeplechase.
• MR Poovamma finished third in women’s 400m with bronze and Gavit Murali Kumar bagged another bronze medal for India in the 10,000m event.

⇒cannot be expressed in terms of p/q, so is an irrational number.

From the given question,

Hence, Ninad is the brother of that man.

• The headquarters of the United Nations Education Scientific & Cultural Organisation (UNESCO) is located in Paris, France.
• It seeks to build peace through international cooperation in Education, Sciences and Culture.
• It was established on 4 November 1946.
• The current Director-General of UNESCO is Audrey Azoulay.

Given,

⇒ (1/2.315) = 0.4319

Now,

∴ (1/0.0002315) = (1/2.315) × 10000 = 0.4319 × 10000 = 4319

In the statement, the benefit of playing football is mentioned, but no information is given regarding the health of a person doing a desk-bound job. Hence only conclusion I follows.

Here cream = chocolate, bread = butter, milk = tea, ice = cold and lemon = soda therefore ice cream = cold chocolate

Hence, cold chocolate is correct answer.

Suppose unit work = 300 units (LCM of 50, 75 & 20)

∴ Work done by A in one day = 300/50 = 6

Work done by B in one day = 300/75 = 4

Work done by C in one day = 300/20 = 15

∴ Work done by (A + B + C) in 4 days = 4 × (6 + 4 + 15) = 100

C quits after 4 days.

∴ Remaining work after 4 days = 300 – 100 = 200 units

∴ Time taken by A and B together to complete 200 units = 200/(6 + 4) = 20 days

• Calangute is a town in Goa.
• Other famous places of Goa are Kola, Vagator, Anjuna Beach, St. Cathedral Church, merdal, Terekhol.
• Pramod Sawant is Chief Minister of Goa
• Goa’s Capital: Panaji
• Rajya Sabha seats in Goa: 1
• Lok Sabha seats in Goa: 2

• The Panchsheel or ‘Five Principles of Peaceful Existence’ was signed between India and China in 1954.

This agreement stated the five principles as:

• Mutual respect for each other's territorial integrity and sovereignty.
• Mutual non-aggression.
• Mutual non-interference in each other's internal affairs.
• Equality and cooperation for mutual benefit.
• Peaceful co-existence.

• These five principles form the basis of the relationship between India and China.

The given information can be represented as follows,


So, cities XYZ are in line.

• NASA detects Universe’s first molecule in space i.e., the Helium hydride ion
• Scientists have detected the most ancient type of molecule in our universe in space for the first time ever.
• It was formed when falling temperatures in the young universe allowed recombination of the light elements produced in the Big Bang.
• At that time, ionised hydrogen and neutral helium atoms reacted to form HeH+.

⇒ ? = 1

• Special Olympics World Games 2019 held at UAE from March 14 to March 21.
• It is a multi-sport event for athletes with intellectual disabilities in the tradition of the Special Olympics movement.
• India won 368 medals (85 gold, 154 Silver, and 129 Bronze) at the game.
• The next Special Olympic Games will take place in Sweden in 2021. 

Here according to the position of each letter we can say that,

U + 3 = X – 4 = T

L + 3 = O – 5 = J

K + 3 = N – 4 = J

D + 3 = G – 4 = C

Therefore, we can say that LOJ is the answer.

3a/m + b/n = 4       ----(1)

a/m - b/n = 4      ----(2)

Adding (1) and (2):

4a/m = 8

∴ a = 2m

Putting the value of a in eq (2)

2m/m - b/n = 4

⇒ b/n = 2 - 4 = -2

∴ b = -2n

In first figure,

⇒ [(3 × 7) – 1] ÷ 2 = 10; [(7 × 5) – 1] ÷ 2 = 17; [(5 × 9) – 1] ÷ 2 = 22;

⇒ Difference of sum of digits of 17 & 10 → 8 – 1 = 7

⇒ Difference of sum of digits of 17 & 22 → 8 – 4 = 4

Product of 7 & 4 – sum of 7 & 4 → 28 – 11 = 17

Similarly,

In 2^nd figure,

⇒ [(5 × 11) – 1] ÷ 2 = 27; [(11 × 1) – 1] ÷ 2 = 5; [(1 × 13) – 1] ÷ 2 = 6;

⇒ Difference of sum of digits of 27 & 5 → 9 – 5 = 4

⇒ Difference of sum of digits of 6 & 5 → 6 – 5 = 1

Product of 1 & 4 – sum of 1 & 4 → 4 – 5 = – 1

Hence, “-1” is the missing number.

The symbols interchange positions horizontally in the next figure,

The symbols interchange positions vertically in the next figure,

The symbols interchange positions both horizontally and vertically in the next figure and this three process gets continued, thus we get option 3 as the answer.

The boy completes 90 rounds in 1 hr (60 min)

In 1 minute, he will complete = 90/60 = 1.5 rounds

∴ In 16 min, he will complete = 16 × 1.5 = 24 rounds

Let the number be ‘x’

⇒ x – 37.5% of x = 45

⇒ x – (3/8)x = 45

⇒ (5/8)x = 45

⇒ x = 8/5 × 45 = 72

∴ The number is 72

Let the divisor be x

Quotient = x/50

Remainder = x/10

x/50 = 32 ⇒ x = 1600

The number/dividend is (Divisor × Quotient) + Remainder

Number = x²/50 + x/10

Dividend = (1600²/50) + 1600/10 = 51360

• Kala Azar is also known as Dumdum fever.
• It is caused by protozoan parasites of the genus Leishmania.
• It affects the internal organs, particularly the liver, spleen, bone marrow and lymph nodes.
• The first oral drug found to be effective in treating kala-azar is miltefosine.

• The term Ebola has been derived from river Ebola which is a tributary of the Congo River, in the northern Democratic Republic of the Congo.
• The river course is thought to be a place where the 1976 Zaire Ebola virus outbreak occurred.
• The Ebola virus causes an acute, serious illness which is often fatal if untreated.
• It is transmitted to people from wild animals and spreads in the human population through human-to-human transmission.

Position of Lexa from the right side = Total no. of persons – Position of Lexa from the left side + 1 → 50 – 34 + 1 → 51 – 34 → 17

Hence, Lexa is 17^th from the right side of the row.

Let,

Let the three numbers be x, y and z

x/y = 7/3

y/z = 4/5

x = 7y/3      ----- (1)

z = 5y/4       ----- (2)

Given, xz = 10500     ----- (3)

Put value of (1) and (2) in (3)

35y²/12 = 10500

y² = 3600

y = 60

x = 140

z = 75

Sum of three numbers = 140 + 60 + 75 = 275

• Nephoscope is a device used to measure altitude, direction, and velocity of clouds.
• It uses the principle of reflection of light by the cloud to measure them.
• The distance of cloud = (speed of light × duration of delay due to reflection) / 2

We know that coefficient of variation = standard deviation/mean = 7/21 = 0.33 = 0.3333 × 100 = 33.33%

• Parliament may by law constitute a High Court for a Union territory or declare any court in any such territory to be a High Court for all or any of the purposes of this Constitution.
• Only Delhi is the only Union Territory that has its own high court.
• Calcutta High Court is the oldest High Court in India established on 1 July 1862.

Formula :
SI = (P × r × t)/100

Where p is the sum, r is rate and t is the time in years.
Given, simple interest on a sum of money for one year is Rs. 260 and the compound interest on the same sum for two years is Rs. 540.80.
⇒ 260 = (p × r)/100 

⇒ r = 200/25 
⇒ r = 8

1) Rectangle represent triangle.

2) Circle represent square.

3) Triangle represent rectangle.

4) Square represent circle.

The letter that represents circle and rectangle i.e. letter that represents the intersection of Square and Triangle which is letter “D”.

Hence, “D” is the correct answer.

• Bhaskara-I was India’s first Earth observation satellite launched on June 07, 1979.
• It was the First Experimental Remote Sensing Satellite built in India.
• The onboard TV camera imageries were used in the field of Hydrology and Forestry.
• The satellite was named after ancient Indian mathematicians Bhāskara I.

667, 319 and 145 are multiples of 29 whereas 234 is not.

Hence, 234 is the odd one out.

⇒ Let his expenditure and savings be 40 and 50 respectively.

⇒ Then his income is 40 + 50 = 90

⇒ Income increase by 20% then,

⇒ New income = 90 × (120/100) = 108

⇒ Saving increases by 6% then,

⇒ New savings = 50 × (106/100) = 53

⇒ New expenditure = 108 – 53 = 55

⇒ Percentage increase in expenditure = (55 − 40) × (100/40) = 37.5%

Let the water added be x ml

Total solution = (x + 50) ml

% of alcohol = 50%

⇒ 50/(x + 50) × 100= 50

⇒ x = 50 ml

We have 2 × r = 19.2

⇒ r = 19.2/2

⇒ r = 9.6 m

Also we have slant height l as

⇒ l² = r² + h²

⇒ l² = 9.6 × 9.6 + 2.8 × 2.8

⇒ l² = 92.16 + 7.84

⇒ l² = 100

⇒ l = 10

Hence, area of tent required = πrl

= (22/7) × 9.6 × 10 = 301.71

Total population in city B = 200 + 100 = 300

Total population in all the four cities = 200 + 300 + 150 + 120 = 770

Total population of illiterates in all the four cities = 50 + 100 + 100 + 90 = 340

∴ total percentage of illiterates in all the four cities = 340/770 × 100 = 44.155% ≈ 44.2%

• Bum La/Bomdila Pass is located in Tawang district of Arunachal Pradesh.
• This pass connects India and China.
• Through this pass, the Chinese army invaded India during the 1962 Sino-Indian War.
• It is one of the five officially agreed Border Personnel Meeting points between the Indian Army and the People's Liberation Army of China.

• अरुणाचल प्रदेश के दर्रे
  Trick — “अरुण ने* बीज* बो दिया”

  1. बो——-बोमडिला दर्रा/बम ला
  2. दि——-दिफू दर्रा
  3. या——-यांग्याप दर्रा

• Penicillin was discovered by Alexander Fleming in 1928.
• It is the first and most widely used antibiotic agent.
• It is derived from Penicillium fungi which are considered as the most important natural source of Penicillin.
• It is used in the treatment of health problems like throat infections, meningitis, syphilis. 

Let the marked price of the product be Rs. ‘x’

⇒ Discount = 30% of x = 0.3x

⇒ Selling price = Marked price – Discount = x – 0.3x = 0.7x

Now,

⇒ Profit earned = 16.67% of Cost Price = CP/6

Also,

⇒ Selling price = Cost price + Profit

⇒ 0.7x = CP + (CP/6)

⇒ 0.7x = (7/6)CP

⇒ CP = 0.6x

⇒ Profit earned = CP/6 = 0.6x/6 = 0.1x

As, Profit earned = Rs. 250

⇒ 0.1x = 250

⇒ x = 250/0.1 = Rs. 2500

∴ Marked price of product is Rs. 2500

• The Group of Seven (G7) is a group consisting of Canada, France, Germany, Italy, Japan, the United Kingdom, and the United States.
• These are the most advanced economies of the world and represent about 58% of the net global wealth.
• The 44th G7 summit took place between 8-9 June 2018 in Canada.
• In March 2019, Italy has joined the china’s mega connectivity scheme, One Belt One Road (OBOR) and has become the first G7 country to do so.
• G-7 Countries names-:
  GK Trick-: drink JUICE with GF (girlfriend)
     1) Japan
     2) USA
     3) Italy
     4) Canada 
     5) England
     6) Germany
     7) France

• Galvanized iron sheets are coated with Zinc.
• Galvanization is the process of applying a protective zinc coating to steel and iron in order to prevent it from rusting.
• Zinc weathers at a very slow rate, so the coating generally has a long life.
• Zinc has a greater electronegativity than iron and hence provides cathodic protection to the steel.

• BOD stands for Biochemical Oxygen Demand.
• It is the amount of dissolved oxygen required by biological organisms to break down organic material present in the water over a specific time period.
• More organic matter in water results in greater BOD; the greater the BOD will result in the lower the amount of dissolved oxygen available for higher animals such as fishes.
• BOD is also used as a gauge to measure the effectiveness of wastewater treatment plants.

• K. Sivan is the current chairman of the Indian Space Research Organisation (ISRO).
• It is the space agency of the Government of India.
• Formation: 15 August 1969
• Headquarters: Bengaluru

• Comedian Zelensky wins the presidential election of Ukraine.
• Exit polls indicated that he is going to take 73 per cent of the votes while incumbent Petro Poroshenko securing 25 per cent.
• Zelensky's only previous political role has been playing the President on television.
• Capital of Ukraine is Kyiv and Currency is Ukrainian hryvnia.

The relation among given numbers is that when a number is even, we divide by 2 to get the next number. When the number is odd, we add one to get the next number:

315 → Odd → 315 + 1 = 316

316 → Even → 316 ÷ 2 = 158

158 → Even → 158 ÷ 2 = 79

79 → Odd → 79 + 1 = 80

80 → Even → 80 ÷ 2 = 40

40 → Even → 40 ÷ 2 = 20

20 → Even → 20 ÷ 2 = 10

10 → Even → 10 ÷ 2 = 5

5 → Odd → 5 + 1 = 6

6 → Even → 6 ÷ 2 = 3

Hence, “3” will complete the series.

• PNG stands for Portable Network Graphics.
• They were created to replace Graphics Interchange Format (GIF) because the patent for GIF was owned by one company.
• Like GIF images, PNG also has the ability to display transparent backgrounds.
• These type of images are capable of containing 24-bit RGB colour palettes and Grayscale images.

We know that each angle in an equilateral triangle is 60°.

So, applying trigonometric formulae in this question we get,

In ΔABD,

tan 60° = AD/BD

⇒ √3 = 15/BD

⇒ BD = 5 √3 cm.

Since, AD is the height of an equilateral triangle; it divides BC into two equal parts, so,

BC = 2 × BD

⇒ BC = 10 √3

Now Area of a Triangle = ½ × Base × Height

⇒ Area = ½ × BC × AD

⇒ Area = ½ × 10 √3 × 15

⇒ Area = 75 √3 cm²

As,

⇒ Simple interest = (Principal × Rate × Time)/100

Now,

⇒ Simple interest on Rs. X at 10% p.a. after 3 years = (X × 10 × 3)/100 = 0.3X

⇒ Simple interest on Rs. Y at 8% p.a. after 3 years = (Y × 8 × 3)/100 = 0.24Y

⇒ Given difference 2100

⇒ 0.3X – 0.24Y = 2100

⇒ 0.1X – 0.08Y = 700 ----(1)

Now,

⇒ Simple interest on Rs. X at 10% p.a. after 7 years = (X × 10 × 7)/100 = 0.7X

⇒ Simple interest on Rs. Y at 8% p.a. after 7 years = (Y × 8 × 7)/100 = 0.56Y

⇒ Required difference = 0.7X – 0.56Y = 7(0.1X – 0.08Y)

Substituting from (1),

∴ Required difference = 7 × 700 = Rs. 4900

• Jaideep Sarkar has been appointed as India's next High Commissioner to South Africa.
• Sarkar, a 1987-batch Indian Foreign Service officer, is currently serving as India's ambassador in Bhutan.
• He served in Indian Missions in Tokyo, Seoul and Bangladesh as well.
• The government also appointed Suhel Ajaz Khan, presently serving as India's Deputy Chief of Mission in Saudi Arabia, as the next Ambassador to Lebanon.

Given:

i) Boys: A, B, C, D, E are five boys sitting in a line facing south.

ii) Girls: M, N, O, P and Q are five girls sitting in second line parallel to first line facing north.

iii) They are facing each other.

1. B who is just next to the left of D, is opposite Q.

2. C and N are sitting at the extreme end diagonally opposite to each other.

3. P who is just to the left of Q is opposite to D.

4. M is at one end of the line.

Hence, M is sitting opposite to C.

Given:

i) Boys: A, B, C, D, E are five boys sitting in a line facing south.

ii) Girls: M, N, O, P and Q are five girls sitting in second line parallel to first line facing north.

iii) They are facing each other.

1. B who is just next to the left of D, is opposite Q.

2. C and N are sitting at the extreme end diagonally opposite to each other.

3. P who is just to the left of Q is opposite to D.

4. M is at one end of the line.

Hence, A is facing N and 4 persons are sitting to the right of A.

The pattern for this code is as follows,

Here, the values are in increasing order of non-prime numbers starting from 4 from the left.

Hence, J will be there in the place of question mark.