Aptitude and Reasoning Questions

Q:

A right circular cylinder has height 28 cm and radius of base 14 cm. Two hemispheres of radius 7 cm each are cut from each of the two bases of the cylinder. What is the total surface area (in cm2) of the remaining part?

A) 3842 B) 4312
C) 3296 D) 4436
 
Answer & Explanation Answer: B) 4312

Explanation:
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Filed Under: Area
Exam Prep: Bank Exams

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Q:

The average revenues of 9 consecutive years of a company is Rs 76 lakhs. If the average of first 5 years is Rs 71 lakhs and that of last 5 years is Rs 83 lakhs, find the revenue for the 5th year.

A) Rs 88 lakhs B) Rs 84 lakhs
C) Rs 86 lakhs D) Rs 82 lakhs
 
Answer & Explanation Answer: C) Rs 86 lakhs

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Filed Under: Average
Exam Prep: Bank Exams , CAT

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Q:

If "–" means "divided by", "+" means "multiplied by", "÷" means "added to", "x" means "subtracted from", then 11 ÷ 6 – 2 + 5 x 3 = ?

A) 17 B) 21
C) 23 D) 26
 
Answer & Explanation Answer: C) 23

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Filed Under: Mathematical Operations
Exam Prep: Bank Exams

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Q:

In how many different ways can the letters of the word 'THERAPY' be arranged so that the vowels always come together?

A) 720 B) 1440
C) 1800 D) 3600
 
Answer & Explanation Answer: B) 1440

Explanation:

Given word is THERAPY.

Number of letters in the given word = 7

Number of vowels in the given word = 2 = A & E

Required number of different ways, the letters of the word THERAPY arranged such that vowels always come together is

6! x 2! = 720 x 2 = 1440.

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Filed Under: Permutations and Combinations
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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Q:

Prabodh has done 1/2 of a job in 30 days, Sapan completes the rest of the job in 45 days. In how many days can they together do the job?

A) 18 days B) 48 days
C) 27 days D) 36 days
 
Answer & Explanation Answer: D) 36 days

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Filed Under: Time and Work
Exam Prep: Bank Exams

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Q:

In a code language, AILMENT is written as 1923540. What is the code for DISEASE?

A) 4985195 B) 4995195
C) 4905195 D) 4995196
 
Answer & Explanation Answer: B) 4995195

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Filed Under: Coding and Decoding

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Q:

A : Many girls started talking part in beauty contest in several towns in india

B : Indian girls succeeded in capturing all the titles of beauty contests. i.e Miss World, Miss Universe and Miss Asia

A) If 'A' is the effect and 'B' is its immediate and principal cause. B) If 'A' is the immediate and principal cause and 'B' is its effect
C) If 'A' is an effect but 'B' is not its immediate and principal cause D) If 'B' is an effect but 'A' is not its immediate and principal cause
 
Answer & Explanation Answer: C) If 'A' is an effect but 'B' is not its immediate and principal cause

Explanation:

There would be no suhch speculation on the part of the Australian caption if his team were not visiting india in the first place. So the latter is a cause.But the immediate cause of the warning is the speculation

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Q:

A uniformly moving train of length 480 m takes 3 minutes to completely cross a platform. If the same train, with the same speed crosses a pole completely in 30 sec, then the length of the platform is -

A) 1 km B) 600 m
C) 4.8 km D) 1.2 km
 
Answer & Explanation Answer:

Explanation:

Let length of platform be ‘y’metres.

Then, at the platform,Distance travelled = y + (length of train) = (y + 480)m

Then, Speed of train = (y + 480)m / (3x60) sec = (y+480)/180 ...(1)

Also, at the pole,Distance travelled = length of train = 480m

Then, Speed of train = 480m / 30sec = 16 m/s ...(2)

Equating eq.(1) & eq.(2), we get,

(y+480)/180 = 16(y+480) = 16 x 180 = 2880

y = 2880 –480 = 2400m or 2.4 km long platform.

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Filed Under: Problems on Trains
Exam Prep: Bank Exams
Job Role: Bank PO , Bank Clerk

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