RRB NTPC Mock Test - 8 (English)

In each pair of figure in option 1, 2 and 4, both the figures are same except that the shape in figure (i) is increased by one in figure (ii), i.e. in option 1, figure (i) has one big circle while figure (ii) has two big circles. There is no other change.

However, in option figure (3), figure (i) is rotated 90 degree clockwise alongwith the addition of the shape to form figure (ii).

Hence option figure (3) is the odd one.

The correct answer is option 1. There should be different restraints on the first world and the third world countries to reduce air pollution.

From the passage, we can conclude that the world is facing serious problems due to air pollution, so we need to control it but same restraints cannot be placed on the first world and the third world countries as it would be unfair to the third world countries. It can be said that there is a need to put different restraints on the third world and the first world countries so as to be fair and to reduce the pollution.Hence, option 1 is the correct solution.

Here the alphabets in rectangle represents Chefs: A and B

Circle represents Choreographers: D, G, E and F

Triangle represents Divers: E, G, H, and I

Square represents Americans: C, E, H, D and B

Set of letters represents Americans who are either Choreographers or Divers are letters in Square and common with Triangle or Circle, which is DEH.

Hence, ‘DEH’ is the correct answer.

• Tuberculosis Bacteria was discovered by Robert Koch.
• It is a potentially serious infectious bacterial disease that mainly affects the lungs.
• It is among the top 3 causes of death for women aged 15 to 44.
• It can spread through the air from person to person

• Meenakshi Amman Temple is located in Tamil Nadu.
• It is also known as Meenakshi-Sundareshwara Temple.
• It was built by ViswanathaNayak during the Nayak rule and is located in the heart of the city of Madurai.

• Trygve Lie was the first Secretary General of the United Nations.
• He served for the period of 6 years i.e, 1946 to 1952.
• Antonio Guterres is the current Secretary‑General of the United Nations.
• The headquarters of the UN is in Manhattan, New York City.

• Oberon is the moon of Uranus.
• It is discovered by William Herschel in 1787.
• The mean distance of Oberon from the center of Uranus is about 582,600 km.
• Oberon is the second largest and most massive of the Uranian moons.

The Battle of Ghaghra was fought in the year 1529 between Babur and Mohammad Lodi (Afghans).

The famous battles fought in the above mentioned years are as follows:

• LSI is used in computer technology stands for Large Scale Integration.
• It is the process of integrating or embedding thousands of transistors on a single silicon semiconductor microchip.
• This technology was conceived in the mid-1970s.
• This technology is no longer in use, It is succeeded by very large-scale integration (VLSI) and ultra large-scale integration (ULSI) technologies.

Clearly, A is the grandfather of J.

Colour of a ripe mango is ‘yellow’ which is written as ‘white’.

Thus, the colour of the mango is white.

• The SI unit of Surface Tension is Newton/meter (N/m).
• The tendency of fluid surfaces to shrink into the minimum surface area possible is known as Surface tension.
• Agnes Pockels discovered the influence of impurities on the surface tension.

Let the number of students in rooms A and B be x and y respectively.

⇒ x - 15 = y + 15

⇒ x - y = 30             - - - - - equation 1

Also from the given data

⇒ x + 25 = 2 (y - 25)

⇒ x + 25 = 2y - 50

⇒ x - 2y = -75                    - - - - - - - equation 2

From equation 1 and equation 2, we get

⇒ Equation 1 - Equation 2, we get y = 105

Substitute y = 105 in equation 1, we get

⇒ x = 135

∴ Number of students in rooms A and B are 135 and 105

Given

2A = 3B

⇒ A : B = 3 : 2 = 15 : 10

And, 3A = 5C 

⇒ A : C = 5 : 3 = 15 : 9

Hence, A : B : C = 15 : 10 : 9

• The Battle of Haldighati was fought between Akbar and Maharana Pratap.
• It was named Haldighati because the sand colour of the area is yellow like haldi.
• The battle fought on 18 June 1576.
• Haldighati is situated in Rajasthan, India.

As there are 52 weeks and 1 day in a non-leap year and 52 weeks and 2 days in a leap year.

Thus, there can be definitely maximum 53 Tuesdays in a year.

• Mercury is a chemical element with symbol Hg and atomic number 80.
• It is also known as quicksilver.
• It is the only metal that is a liquid at standard temperature and pressure.
• It is commonly used in fluorescent lights, felt production, thermometers, and barometers.

= cos⁴θ + sin⁴θ + sin²θcos²θ

= 1 − 2sin²θcos²θ + sin²θcos²θ

= 1 − sin²θcos²θ

Changing operators as given format.

Given expression: 363 × 3 ÷ 4 - 15 ÷ 20 + 1

After interchanging symbols: 363 ÷ 3 + 4 × 15 + 20 - 1 = 121 + 60 + 20 - 1 = 200

Hence, the correct answer is 200.

Hence, the unfolded figure will be similar to option 2.

• Florida Strait separates the USA with Cuba.
• It is a strait located in south-southeast of the North American mainland.
• The strait carries the Florida Current, the beginning of the Gulf Stream, from the Gulf of Mexico.

Part filled by pipe A in 1 hr. = 1/8

Part filled by pipe B in 1 hr. = 1/10

Part filled by pipes A & B in 1 hr. = 1/8 + 1/10 = 9/40

Part filled by pipes A & B in 2 hrs. = 4 × 9/40 = 9/10

∴ After 4 hours, 9/10 part of the cistern is filled

IN ΔABC

• Methane and Carbon dioxide are the main constituent of Biogas.
• Methane is produced by the anaerobic bacterial decomposition of vegetable matter under water.
• It is also known as marsh gas or swamp gas.
• Its chemical formula is CH_4.

Let average runs be x.

Total runs in 9 matches = 9x

Average runs after 10^th match = (9x + 111)/10 = x + 5 (given)

⇒ 9x + 111 = 10x + 50

⇒ x = 61

∴ Average after 10^th match = 61 + 5 = 66

• The Simla Conference was held in 1945.
• It was a meeting between the Viceroy Lord Wavell and the major political leaders of British India at Shimla, India.
• It was conducted to discuss the provisions of the Wavell Plan
• The conference began in Simla on June 24, 1945, and lasted till July 14, 1945.
• Simla Conference proved out as a failure.

Speed of the train = 65 kmph

Speed of the man = 7 kmph

Since, they travel in the opposite direction

Relative speed = Speed of train + Speed of man = 65 + 7 = 72 kmph

Relative speed =  = 20 m/s

Time taken by train to pass the man = 13 s

Length of the train = Relative speed × Time taken by train to pass the man = 20 × 13 = 260 m

• The famous Sanchi Stupa is associated with Buddhism.
• It is located in north-east of Bhopal, Madhya Pradesh.
• It is developed in Buddhist architecture.
• It is made out of locally quarried sandstone.
• Its construction got started in 3rd century BCE.
• The height of the Sanchi Stupa is about 54.0 ft.

Given, 11.11% of Aditi’s age = 66.67% of Farah’s age

⇒ 1/9 × Aditi’s age = 2/3 × Farah’s age

⇒ Aditi’s age = 9 × 2/3 × Farah’s age

⇒ Aditi’s age = 6 × Farah’s age       ----(1)

Also, 60% of Farah’s age = 20% of Sana’s age

⇒ 3/5 × Farah’s age = 1/5 × Sana’s age

⇒ Sana’s age = 5 × 3/5 × Farah’s age

⇒ Sana’s age = 3 × Farah’s age      ----(2)

Dividing (1) by (2), we get,

⇒ Aditi’s age/Sana’s age = 6/3 = 2

∴ Ages of Aditi and Sana is in the ratio 2 ∶ 1

⇒ 7 x 2¹¹
⇒ 14336 = ?

Marked price = M.P = Rs. 7500

After discount of 12%

Purchase price = (1 - 0.12) × 7500 = Rs. 6600

After spending Rs. 250 on repair

Cost price = C.P = Rs. (6600 + 250) = Rs. 6850

To gain a profit of 20%

∴ Selling price = (1 + 0.20) × C.P = 1.2 × 6850 = Rs. 8220

Shortcut method:

Selling price = (1 + profit percent/100) × {(1 - discount percent/100) × marked price + repair cost}

∴ Selling price = 1.2 × {(1 - 0.12) × 7500 + 250} = Rs. 8220 

As song is sung by Singer,

Similarly,

painting is made by Painter.

Hence, painting : painter is the correct answer.

• North Korea is not a member of the Association of Southeast Asian Nations (ASEAN).
• There are currently 10 member states: Indonesia, Malaysia, Philippines, Singapore, Thailand, Brunei, Laos, Myanmar, Cambodia, and Vietnam.
• ASEAN was founded in 1967 by the five Southeast Asian nations of Indonesia, Malaysia, Philippines, Singapore, and Thailand.
• The Secretary-General of ASEAN 2018 - 2022 is H.E. Dato Lim Jock Hoi. He is from Brunei Darussalam.

The given equation is: 16 × 20 ÷ 15 - 4 + 2 = ?

Here '-' represents '×', '÷' represents '+', '+' represents '÷' and '×' represents '-'. So let’s replace the sign in the above equation.

16 × 20 ÷ 15 - 4 + 2 → 16 - 20 + 15 × 4 ÷ 2 = 16 + 10 = 26

Hence, 26 is the correct alternative.

The figure required to complete the pattern should have two squares at right side and one circle and left side.

Hence, answer is option 2.

Let the speed to reach on time be s.

Let the distance to office be d.

Time taken by car at 80 km/hr = x = d/s = d/80

Time taken by car at 60 km/hr = y = d/s = d/60

Time taken by car at s km/hr = z = d/s = d/s

Given: x = z – 15/60, y = z + 15/60

⇒ d/80 = d/s – 15/60 = d/s – 1/4 ⇒ d(1/80 – 1/s) = -1/4

⇒ d/60 = d/s + 15/60 = d/s + 1/4 ⇒ d(1/60 – 1/s) = 1/4

Dividing the two equations, we get

(1/80 – 1/s)/(1/60 – 1/s) = -1

⇒ 1/80 – 1/s = 1/s – 1/60

⇒ 2/s = 1/80 + 1/60 = 1/20(1/4 + 1/3) = (1/20)(7/12)

⇒ s = 40 × 12/7 = 480/7 km/h

On the basis of given data we can draw the family tree as below.

 

Gender of Abhi is unknown but if we look at the options the only correct answer we can get is Uncle-Nephew relation.

Thus the relation we get is Abhi is the nephew of the other person who is his mother’s brother i.e. his uncle.

Let the numbers be 18x and 18y where x and y are co-prime.

LCM of 18x and 18y = 18xy

According to the question,

18xy = 936

⇒ xy = 936/18

⇒ xy = 52

⇒ xy = 13 × 4

⇒ x =13 and y = 4

First number = 18 × 13 = 234

Second number = 18 × 4 = 72

∴ Sum of both numbers = 234 + 72 = 306

Suresh is shorter than Kaushal but taller than Ramesh.

Ramesh < Suresh < Kaushal

Madhur is the tallest. Amit is a little shorter than Kaushal but little taller than Suresh.

Ramesh < Suresh < Amit < Kaushal < Madhur.

Hence, Ramesh is shortest.

• The SA node and AV node are associated with Heart.
• They are located in the upper wall of the right atrium.
• SA node generates cardiac impulses whereas the AV node relays and intensifies cardiac impulses.
• The SA node is the Sinus Node.
• The AV node is Atrioventricular node

Let selling price of 1 chair = S.P

Cost price of 1 chair = C.P

Profit in selling 250 chairs = 50 S.P

Profit in selling 1 chair = 50/250 S.P = 0.2 S.P

Profit = S.P - C.P

⇒ 0.2 S.P = S.P - C.P

⇒ C.P = 0.8 S.P

Profit percentage = (profit/C.P) × 100 = (0.2 × S.P/0.8 × S.P) × 100 = 25%

In this question, the logic that is being followed is that one element constitutes the other. Tributaries make Rivers. States make a Country.

Hence, the answer is ‘Country’.

• Egypt is known as “Gift of Nile”.
• Reason: Every year in Egypt, the Nile overflows and creates a rich valley of black soil that is abundantly fertile.
• This fertility helped Egyptian civilization to flourish.
• The capital of Egypt is Cairo.

• Barabar Caves are the oldest rock cut caves that are located in Bihar.
• They are Located in the Jehanabad district of Bihar.
• They are a Part of Barabar and Nagarjuni hills
• They were Founded in 322-185 BCE.

x² - 3x + 1 = 0

Dividing above eq. by x, we get,

x - 3 + 1/x = 0

x + 1/x = 3

If x + 1/x = n

x⁴ + 1/x⁴ = (n ² - 2)² - 2

Here, n = 3

x⁴ + 1/x⁴ = (9 - 2)² - 2 = 47

As per the keys, QZMSYBXZ represents straight.

Here the alphabets in rectangle represents Dentists: F, G, L, K, E, and C.

Circle represents Bloggers: H, I, J, G, L, and K.

Triangle represents Comedian: B, C, D, J, and K.

Square represents Boxers: A, H, F, and G.

Set of letters represents Dentists who are either Bloggers or Comedians are G, L, K, and C.

Hence, ‘GLKC’ is the correct answer.

• Charles Parsons is known for the discovery of Modern Steam Turbine.
• A steam turbine is a device that extracts thermal energy from pressurized steam.
• The turbine generates rotary motion and it is suitable to be used to drive an electrical generator.
• It was invented in 1884.

Let, investment of A = Rs. 4x

Investment of B = Rs. 7x

Thus, Investment of C = Rs. 7x

The weighted ratio of investment of A, B, and C

⇒ 4x × 12 ∶ 7x × 12 ∶ 7x × 6

⇒ 48x ∶ 84x ∶ 42x

⇒ 8 ∶ 14 ∶ 7

∴ The ratio of their profit after one year = 8 ∶ 14 ∶ 7

P = Rs. 5000, S.I. = Rs. (6920 - 5000) = Rs. 1920, T = 4 years

By putting values, R = 48/5 % p.a.

New rate = (1.5 × 48/5) = 72/5 % p.a.

Now, P = Rs. 5000, R = 72/5 %, T = 5 years

By putting values, S.I. = Rs. 3600

∴ Amount = Rs. (5000 + 3600) = Rs.8600

Let the number multiplied be x

Expected answer = 5/4 × x = 1.25x

Answer obtained with wrong calculation = 4/5 × x = 0.8x

Error = (Expected answer – Wrong answer) / (Expected answer) × 100

⇒ (1.25x – 0.8x) / (1.25x) × 100

∴ 0.45/1.25 × 100 = 36%

We cannot infer from the statement that country Y has faced a terrorist attack or was threatened by terrorists.

Hence neither I nor II follows.

We know that,

(A + B)³ = A³ + B³ + 3A²B + 3AB²

(A – B)³ = A³ – B³ – 3A²B + 3AB²

⇒ (A + B)³ – (A – B)³ = 2B³ + 6A²B

⇒ (A + B)³ – (A – B)³ – 6B(A² – B²) = 2B³ + 6A²B – 6B(A² – B²) = 8B³

∴ Required value = 8 × 8³ = 8 × 512 = 4096

[(289 + 87) ÷ 2 - 7 × 18 ÷ 2 + {(9 + 5) × 19} + 3 × 7 - 9] × 19 + 9 = ?

[376 ÷ 2 - 7 × 18 ÷ 2 + {(9 + 5) × 19} + 3 × 7 - 9] × 19 + 9 = ?

? = [188 - 7 × 18 ÷ 2 + 266 + 3 × 7 - 9] × 19 + 9

? = [188 - 7 × 9 + 266 + 3 × 7 - 9] × 19 + 9

? = [188 - 63 + 266 + 3 × 7 - 9] × 19 + 9

? = [188 - 63 + 266 + 21 - 9] × 19 + 9

? = 7657 + 9

? = 7666.

• Bulgaria is also known as the Land of Roses.
• The Capital of Bulgaria is Sofia.
• Official languages of Bulgaria is Bulgarian.
• Rumen Radev is the president of Bulgaria.

• Pampas grasslands are located in the South American continent.
• They spread through Argentina, Uruguay, and Brazil.
• They have a temperate climate with precipitation of about 600 to 1,200 mm.

A company would not replace the product if there had been no problem. Hence only assumption I is implicit and option 1 is correct.

• Namvar Singh was one of the contemporary Hindi literature's greatest writers and critics.
• He died on 19 February 2019 after a prolonged illness.
• His notable writings include "Chhayavaad", "ItihasAurAlochana", "Kahaani Nayi Kahaani", "KavitaKeNayePratimaan", "DusriParampara Ki Khoj".
• He also worked as a professor in his alma mater BHU as well as Jodhpur University and Jawaharlal Nehru University (JNU).

• The Dogri language is primarily associated with Jammu and Kashmir.
• It is an Indo-Aryan language.
• The people who speak the Dogri language are called Duggar.
• Dogri was recognized as an official language of India by including it in the 8th schedule of the Indian Constitution.

• Gandhi–Irwin Pact was signed on 5 March 1931.
• The Gandhi-Irwin Pact was a political agreement signed by Mahatma Gandhi and Lord Irwin.

The important pacts signed in this agreement were:

• The government will release most of the civil disobedience volunteers.
• Indian National Congress will discontinue Civil disobedience movement.
• The congress will participate in the second Round Table Conference.
• Tax on salt will be removed.

When 8961 is divided by 84, we get 106 as quotient and 57 as Remainder

i.e 8961 = 106 × 84 + 57

So, to make it exactly divisible by 84, 84 – 57 = 27 should be added.

• The Israeli Parliament is also known as Knesset.
• Yuli-Yoel Edelstein is the Speaker of Knesset since 2013.
• Elections in Israel are based on nationwide proportional representation.
• Knesset is located in Givat Ram, Jerusalem.

• Wing Commander Abhinandan Varthaman is an Indian fighter pilot and officer in the Indian Air Force.
• He flies an Indian Air Force Mig-21 Bison.
• He shots down a Pakistani F-16 on 27 February 2019 in a dog fight.
• He was caught by Pakistan defence forces but later he returned to India on 1 March 2019 through the Wagah border.

• The distance of Sun from the Earth is approximately 150 million kilometers
• It is calculated by Astronomer Christiaan Huygens in 1653.
• The Earth is receding from the Sun on an average of 15 cm per year.
• Earth is the third planet from the Sun.
• Earth is closest to the sun every year around January 3 which is known as perihelion.
• It is farthest from the sun every year around July 4 which is known as aphelion.

∠ACD (outer angle) = 180° – 45° = 135°

∠CAB + ∠CBA = ∠ACD (outer angle) = 135°

AC = BC (Both are same side given) so ∠CAB = ∠CBA = x°

⇒ x° + x° + 45° = 180°

⇒ 2x° = 135°

⇒ x° = 67.5°

∴ 2∠A + ∠B = 2 × 67.5 + 67.5 = 202.5°

• Bal Gangadhar wrote the book ‘Shrimadh Bhagavad Gita Rahasya’.
• He wrote it when he was in prison at Mandalay in Burma.
• Bal GangadharTilak was the first leader of the Indian Independence Movement.
• He is known as "father of Indian Unrest”.
• He also earned the title “Lokamanya” which means 'the person who is respected by people and favorite of all’.

Since, P and Q take 12 days to complete the total amount of work.

∴ In 1 day the amount of work completed by P and Q would be = 1/12

Similarly, Q and R take 16 days to complete the total amount of work.

∴ In 1 day the amount of work completed by P and Q would be = 1/16

Since, R and P take 24 days to complete the total amount of work.

∴ In 1 day the amount of work completed by P and Q would be = 1/24

Let’s assume the individual efficiencyof P, Q and R to complete the work in 1 day is p, q and r respectively.

⇒ 2(p + q + r)

⇒ p + q + r = 3/32

∴ Total no. of days required = 32/3 days. = 10.66 = 11 days (approximate.)

From first figure to second figure, water image of the first shape is taken and for the rest shapes mirror image is taken.

Hence option (3) is correct.

• Saurabh Chaudhary is associated with Shooting.
• He became the youngest Indian gold medalist at the Asian Games.
• He is the only Indian shooter to won gold medal in the Youth Olympic, Asian games, Junior ISSF world championship, ISSF World Cup and Asian Airgun championship.

• International Mother Language Day is celebrated every year on 21^st February.
• The main purpose of celebrating this day is to promote the awareness of language and cultural diversity all across the world.
• It was first announced by UNESCO on November 17, 1999. Since then it is being celebrated every year.
• This day was initiated by Bangladesh for Bangla language.

• Luni is the only river integrated into the Indian Thar Desert.
• It originates in the Pushkar valley of the Aravalli Range, near Ajmer and ends in the marshy lands of Rann of Kutch in Gujarat.
• It was first known as Sagarmati, then after passing Govindgarh, it meets its tributary Saraswati, which originates from PushkarLake, and from then on it gets its name Luni.
• The Thar Desert is also known as the Great Indian Desert.

• Octopus belongs to the phylum Mollusca.
• Many organisms belonging to this phylum have a calciferous shell.
• The phylum includes animals like snails, octopuses, squids, oysters, etc.
• The bodies are generally very soft and are covered by the hard exoskeleton.
• The body is divided into head, muscular foot, and visceral mass.
• They reproduce through gametic fusion.
• Their Heart consists of one or two auricles and one ventricle.

The middle number shows the difference of letters between the given two letters.

E.g. The letter between O and Q is only 1 letter that’s why it is O1Q.

In E1H, difference between E and H is 2 but in series it is given 1.

Thus, wrong term is E1H.

All options except ‘Mathematics’ is a language while Mathematics is a subject.

The method followed here is,

Number of the first column × number of second column = number of third column.

12 × 13 = 156

15 × 13 = 195

Same method will be followed to find out the missing number:

→ 14 × ? = 154

→ ? = 154/14 → 11

Hence, missing number is 11.

• By Act 36, Sikkim became the 22nd State of the Indian Union.
• Sikkim was an independent kingdom ruled by the Namgyal, a dynasty founded by Phuntsog Namgyal in 1642.
• Sikkim became the 22nd state of the Indian Union on 16 May 1975
• Kazi Lhendup Dorji became the first Chief Minister of the state.

• Nashik is also known as ‘Wine Capital of India’
• It is called the "Wine Capital of India" because almost half of India’s wineries are located in Nashik.
• Nashik is an ancient holy city in the northwest region of Maharashtra

Using BODMAS rule,

1) 60 ÷ 10 × 4 - 10 = 14, True

2) 60 - 10 × 4 ÷10 = 56 ≠ 14

3) 60 × 10 - 4 ÷ 10 = 599.6 ≠ 14

4) 60 × 10 ÷ 4 - 10 = 140 ≠ 14

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

• Phylum Arthropoda is the largest phylum in the animal kingdom.
• Arthropods have jointed limbs.
• Their body is segmented into three regions - Head, Thorax, and Abdomen.
• Most of the insects like crabs, spiders, scorpions, sea spiders and mites etc fall under the phylum Arthropoda
• They make up about 80 percent of the known species of animals.
• The second largest phylum after Arthropoda is Phylum Mollusca.

• Rukmini Devi Neelakanda Sastri was associated with Indian classical dance form of Bharatanatyam.
• She was also awarded Padma Bhushan in 1956.
• She was the first Indian woman to be nominated in Rajya Sabha.
• She died on 24 February 1986

The first conclusion follows as Chicago is the most expensive one so other cities will be less expensive than it. Since the statement clearly says that Chicago is the most expensive city then it follows that no other city is more expensive than Chicago. Also, Angola is not a city but a country. Hence, conclusion II does not follow. 

According to the given options, orange has the longest wavelength.

In the Visible spectrum of light, Red colour has the longest wavelength.

The ascending order of the colours in visible spectrum according to their wavelength is as follows:

• Violet
• Indigo
• Blue
• Green
• Yellow
• Orange
• Red

Mumbai is a part of India; India is a part of Earth; Earth is a part of Milky Way and Milky Way is a part of Universe.

Hence, the arrangement is as follows – Mumbai, India, Earth, Milky Wayand Universe.

Thus: 5, 3, 2, 4, 1 is the correct option.

• Nirmala Sitharaman assumed charge as the Union Minister of Finance & Corporate Affairs in May 2019.
• Nirmala Sitharaman has served as the Union Defence Minister since 2017.

• A concave mirror is suitable to be used as a shaving glass.
• It helps us to see the enlarged image of a face.
• Also, the image formed is erect, virtual and of the same size as of the object.
• It is also used as a reflector for the headlights of a vehicle and searchlights.

Interest from simple interest = PRT/100

The formula for CI at annual compound interest, including principal sum, is: CI =

Where:

CI = Compound Interest

P = the principal investment amount (the initial deposit or loan amount)

r = the annual interest rate (decimal)

n = the number of times that interest is compounded per year

t = the number of years the money is invested or borrowed for

SI = Rs. 250

Principal = 250 × 100/(2 × 5) = Rs. 2500

CI = (2500(1 + 5/100)² - 2500) = Rs. 256.25

• The Kosi river joins Ganga in Katihar district of Bihar.
• Kosi is also known as the sorrow of Bihar as this causes a flood in the region.
• The Kosi River is also known as SaptaKosi because of its seven tributaries.
• The main tributaries of Kosi river are Tamor River, Arun River, and Sun Koshi, Tamakoshi River, LikhuKhola.

Thus image at option 3 completes the given figure.

Food needed for 250 soldiers for 15 days = 250 × 15 units

X = 250 × 15

Food needed for 350 soldiers for 15 days = 350 × 15 units

350 × 15 = 1.4 X

Increase in food supplies = 1.4X - X = 0.4X 

Let 7 odd consecutive numbers are (n - 6), (n - 4), (n - 2), n, (n + 1), (n + 4), (n + 6)

Given that, Average = 31

Average = middle term = n = 31

If we add previous and next odd number to these 7 odd numbers, again middle term will be

n = 31

∴ New average = 31

• Farad is the SI Unit of Capacitance.
• Capacitance is the ratio of the change in an electric charge in a system to the corresponding change in its electric potential.
• Farad is named after the English physicist Michael Faraday.

Step 1: All are sitting around a circle facing outside the center. Thus, the clockwise direction represents the right side and the anticlockwise direction represents the left side. Given, V is second to the left of P and second to the right of Z.

Step 2: T is third to the right of Q and is not an immediate neighbor of V. S is third to the right of R.

T is to the immediate right of R.

Step 1: All are sitting around a circle facing outside the center. Thus, the clockwise direction represents the right side and the anticlockwise direction represents the left side. Given, V is second to the left of P and second to the right of Z.

Step 2: T is third to the right of Q and is not an immediate neighbor of V. S is third to the right of R.

Among the given options, only ZTS follow the given condition i.e., first person Z is sitting between 2^nd and 3^rd Person i.e., T and S respectively.

Here the information can be represented as,

Therefore Paper is coded as 8.

Here the information can be represented as,

Thus, tea is coded as either 7 or 6.

Maximum cost of traveling from Delhi to town A = 6000 when traveling by train 4

Maximum cost of traveling from Delhi to town B = 6300 when traveling by train 4

Maximum cost of traveling from Delhi to town C = 5600 when traveling by train 4

Maximum cost of traveling from Delhi to town D = 5700 when traveling by train 4

Maximum cost of traveling from Delhi to all cities = 6000 + 6300 + 5600 + 5700 = Rs. 23600

Least cost of journey from Delhi to town A = 3100 when traveling by train 2

Least cost of journey from Delhi to town D = 3200 when traveling by train 2

Total least cost of journey from Delhi to town A and Delhi to town D = 3100 + 3200 = Rs. 6300

We can observe from the table that cost is least in train 2 when going to C

Average cost of journey to time A = (cost of train 1 + cost of train 2 + cost of train 3 + cost of train 4)/4

Average cost of journey to time A = (4300 + 3100 + 4000 + 6000)/4 = Rs. 4350