RRB NTPC Mock Test - 6 (English) - Railways MCQ

RUMTCPEO → COMPUTER → an electronic device.
OAPPTL → LAPTOP → an electronic device.
NTVIESILOE → TELEVISION → an electronic device.
EKCCAENL → NECKLACE → a piece of jewelry.
Therefore, EKCCAENL is the odd one out.

Bear → a mammal.
Platypus → a mammal.
Frog → an amphibian.
Dolphin → a mammal.
Therefore, Frog is the odd one out.

Hence, Frog is the right answer

• The 91st Academy Awards were presented at the Dolby Theatre, in Los Angeles, California.
• Best Picture - Green Book.
• Best Actor in a Leading Role - Rami Malek for Bohemian Rhapsody.
• Best Actress in a Leading Role - Olivia Colman for The Favourite.
• Best Directing - Alfonso Cuarón for Roma.
• Best Supporting Actor - Mahershala Ali for Green Book.

• The CAG receives a salary equal to a judge of the Supreme Court of India. 
• He is equivalent to a secretary-level IAS Officer to the Government of India, in rank. 
• The CAG is appointed for a period of 6 years or till he attains the age of 65 years, whichever is earlier. 
• According to Article 148 of the Constitution of India, he is responsible for the financial audit of the Union as well as State Government Finances. 

% decrease in consumption

Vehicles emit carbon dioxide which is a greenhouse gas.

Therefore, Reason (R) is true.

Therefore, increase in average cars on road means increase in carbon dioxide.

Therefore, Assertion(A) is true.

Hence, (A) is true and (R) is true and (R) is the correct explanation of (A).

The LCM of fractional number = LCM of numerator/HCF of denominator
The LCM of (6/5) and (8/25) = 

Bacteria causes diseases.

Therefore reason is true.

Tuberculosis is caused by bacteria

Therefore, the Assertion is false.

Hence, A is false but R is true.

Optimistic means someone who looks at everything positively. Pessimistic is someone who looks at something negatively. Therefore, we need to choose antonyms.

Evidence → Manifest, Dodge → Avoid

Not Antonyms

Transparent : Translucent

Clearly not antonyms

Tragic : Comic

Clearly are antonyms

Hence, Tragic : Comic is the correct answer.

Given, speed of the car = 66 km/h and diameter of wheel = 21 cm

So, radius of wheel (r) = 21/2 = 10.5 cm

As we know, Distance = speed × time

Distance covered by car in 36 sec = 66 × 5/18 × 36 = 660 meter

As we know, circumference of circle = 2πr

Thus, Circumference of wheel = 2 × 22/7 × 21/2 = 66 cm

∴ No of revolutions = distance/(circumference of wheel) = (660 × 100)/66 = 1000

• Keshab Chandra Sen led the formation of Brahmo Samaj of India in 1866.
• He embraced the comprehensive and radical scheme of social reform and also the amalgamation of “bhakti” into Brahamoism.
• He formed the Indian Reform Association (1870) and his efforts led to the enactment of the Native Marriage Act Of 1872 (popularly known as the Civil Marriage Act).
• The Brahmo Samaj was founded by Raja Ram Mohan Roy.

• The Ecosystem is divided into biotic components and abiotic components. 
• Biotic components can be divided into producer, consumer and decomposers. 
• Abiotic Components are the carbonic substance, non-carbonic substance and climatic factors. 
• Water, light, temperature, air, humidity etc. are the abiotic components of the ecosystem. 

Hence, IJL is odd one from rest.

The ratio of boys and girls is 5 : 3

Number of girls = (3/8) × number of students

The ratio of girls and teachers is 7 : 1

Number of girls/ Number of teachers = 7/1

[(3/8) × Number of students]/Number of teachers = 7/1

Number of students/Number of teachers = 56/3

∴ The ratio of students and teachers 56 ∶ 3

We follow the BODMAS rule to solve it.

1331 % 121 ^ 6 _ 2 ! 13 = 1331 ÷ 121 – 6 + 2 × 13 = 11 – 6 + 26 = 31

Therefore, 31 is the correct answer.

Let the angle be ‘A’

⇒ Supplement of the angle = (180°– A)

Given that the angle is five seventh of its supplement

⇒ A = 5/7 (180°– A)

⇒ 7 × A = 5 × (180°– A)

⇒ 7A = (5 × 180°)– 5A

⇒ 7A + 5A = (5 × 180°)

⇒ 12A = (5 × 180°)

⇒ A = (5 × 180°)/12

⇒ A = 75°

Supplement of A = 180°– 75° = 105°

∴ Angle and its supplement are 75° and 105° respectively

We use BODMAS to calculate the following expression.

14 + 7 × 5 – 6 ÷ 10 = 14 ÷ 7 + 5 × 6 – 10 = 2 + 30 – 10 = 22

Therefore, 22 is the answer.

We know the formula for compound interest -

Where,

CI = Compound interest

P = Principal

R = Rate of interest

T = Time period

Let the principal be P

CI = P (1 + 8/100) ² - P = 104P/625

SI = P × 8 × 2/100 = 4P/25

CI - SI = 40

104P/625 - 4P/25 = 40

P = 40 × 625/4 = Rs. 6250

AB = height of tower
tanα = AB/x

Put value of x from eq.(i) to (ii)

• India-Bhutan Foundation was established in August 2003 when then Crown Prince (present King) of Bhutan visited India.
• It aims to enhance people to people exchanges in focus areas like education, culture and environment protection.

Formula: dividend = divisor × quotient + remainder

Given, the number is divisible by 9.

Thus the number is a multiple of 9.

Let the number be 9a.

Given, number when divided by 5, 6, 7, 8 gives the remainder 3.

Thus, it will give a remainder of 3 when its divided by LCM of 5, 6, 7, 8

LCM of 5, 6, 7, 8 = 840

∴ 9a = 840 × quotient + 3

Here, ‘a’ should be an integer.

For quotient = 1

⇒ 9a = 840 + 3

a = 281/3

Thus, 843 is not the least number

For quotient = 2

⇒ 9a = 840 × 2 + 3

a = 187

Thus the least number is 1683.

⇒ (.4)² + (.04)² + (.004)² = 0.16 + 0.0016 + 0.000016 = 0.161616

Hence, 0.161616 will be the answer.

Bomdi La Pass: The actual Bomdi La pass (a saddle point) is at a height of 2600m and is about 2-3km away (and higher than) the Bomdila town, Arunachal Pradesh.

• A new species of ‘crying’ snake was discovered in Lepa-Rada district of Arunachal Pradesh.
• The discovery of the non-venomous crying keelback with zoological name Hebius lacrima, has been published in Zootaxa, a New Zealand-based mega-journal for animal taxonomy.
• Globally there are 3,709 species of snakes.
• The northeast is home to some 110 species, with Arunachal Pradesh having 55.

Let the average weight of the boys be x kg.

In a class of 55 students there are 34 girls.

So, no. of boys = 55 – 34 = 21

The average weight of these girls is 51 kg and average weight of the full class is 55.2 kgs.

So, we can write now,

(51 × 34) + (21 × x) = 55 × 55.2

⇒ 1734 + 21x = 3036

⇒ 21x = 1302

⇒ x = 62

∴ The average weight of the boys = 62 kg

Let the initial income of the man be Rs. x.

We know that,

Income (I) = Expenditure (E) + Savings (S)

Initial expenditure = 60% of x = Rs. 0.6x

Initial savings = x – 0.6x = Rs. 0.4x

Income after increment of 20% = x + (20% of x) = Rs. 1.2x

Expenditure after increment = 0.6x – (20% of 0.6x) = Rs. 0.48x

Savings after increment = 1.2x – 0.48x = 0.72x

∴ % change in savings = [(0.72x – 0.4x)/0.4x] × 100 = 80% increase

• “Satvameva Jayathe” was the slogan given by moderate leader Madan Mohan Malaviya.
• “Inqlaab Zindanbad” was given by Hasrat Mohani but popularized by Shaheed Bhagat Singh.
• “Simon Go Back” was given by Lala Lajpat Rai.
• “Garibi Hatao” was given by Indira Gandhi.

• The Second Battle of Tarian (Taraori) was fought between Mohammed Ghori and Prithviraj Chauhan. The battle took place in 1192 A.D near Tarain.
• In this battle, Prithviraj Chauhan was defeated by Mohammed Ghori.

• The Geographical Indication Registry of India has presented a geographical indication tag status namely-

  Banglar Rosogolla of West Bengal.

Mahabalipuram stone sculpture of Tamil Nadu.

Banaganapalle mango of Andhra Pradesh.

• Darjeeling tea of West Bengal was the first Geographical Indication tagged product in India, in 2004 and 2005.