Aptitude and Reasoning Questions

Q:

The area of a square is 1024 sq.cm. What is the ratio of the length to the breadth of a rectangle whose length is twice the side of the square and breadth is 12 cm less than the side of this square ?

A) 14:9 B) 13:12
C) 16:5 D) 17:13
 
Answer & Explanation Answer: C) 16:5

Explanation:

Area of a square SxS = 1024 => S = 32 cm
Length of the rectangle = 32x2 cm = 64 cm
Breadth of the rectangle = 32 - 12 = 20 cm
Required ratio = 64 : 20 = 16 : 5

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Filed Under: Area
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
Job Role: Bank Clerk , Bank PO

5 10325
Q:

In a certain code STAR is written as 5$*2 and TORE is written a $32@. How is OATS written in that code?

A) 3*5$ B) 3*$5
C) 3$*5 D) 35*$
 
Answer & Explanation Answer: B) 3*$5

Explanation:

Following table depicts the code of used letters in the two given words: 

Letters     S     T     A     R     O     E

Code          5     $     *     2     3     @

Therefore, OATS => 3*$5

    

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Filed Under: Coding and Decoding

23 10320
Q:

Consider the following information and answer the questions based on it.

 

Out of the 75 birders, 15 wanted to see only sunbird, 10 wanted to see only flycatcher, 12 wanted to see both sunbird and nuthatch, 15 wanted to see only bee-eater, 13 wanted to see both sunbird and bee-eater, 5 wanted to see both flycatcher and nuthatch and the remaining wanted to see only nuthatch.

 

How many birders wanted to see only one bird?

A) 30 B) 40
C) 45 D) 50
 
Answer & Explanation Answer: C) 45

Explanation:
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Filed Under: Logical Venn Diagram
Exam Prep: Bank Exams

0 10315
Q:

Find: S.l on Rs 68000 at 1623 1 % per annum for 9 months

A) 6500 B) 7500
C) 8500 D) 9500
 
Answer & Explanation Answer: C) 8500

Explanation:

P = 68000, R =503%  & T = 9 months (3/4 years)  

 S.I=p×r×t100=(6800×503×34)100=Rs.8500

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Filed Under: Simple Interest
Exam Prep: GRE
Job Role: Bank PO

3 10315
Q:

Find the LCM of 35, 311, 3-11 and 314

 

A) 35 B) 311
C) 3-11 D) 314
 
Answer & Explanation Answer: D) 314

Explanation:
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Filed Under: HCF and LCM
Exam Prep: Bank Exams , CAT

7 10312
Q:

Find the lowest 4-digit number which when divided by 3, 4 or 5 leaves a remainder of 2 in each case ?

A) 1020 B) 1040
C) 1060 D) 1022
 
Answer & Explanation Answer: D) 1022

Explanation:

Lowest 4-digit number is 1000.
LCM of 3, 4 and 5 is 60.
Dividing 1000 by 60, we get the remainder 40. Thus, the lowest 4-digit number that exactly divisible by 3, 4 and 5 is 1000 + (60 - 40) = 1020.
Now, add the remainder 2 that's required. Thus, the answer is 1022.

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Filed Under: Problems on Numbers
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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11 10307
Q:

An industrial loom weaves 0.128 metres of cloth every second. Approximately, how many seconds will it take for the loom to weave 25 metre of cloth ?

A) 194 seconds B) 195 seconds
C) 196 seconds D) 197seconds
 
Answer & Explanation Answer: B) 195 seconds

Explanation:

Let the time required by x seconds.

Then, More cloth means More time (Direct Proportion)

So, 0.128 : 1 :: 25 : x

x=1×250.128 => x = 195.31

 So time will be approx 195 seconds

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Filed Under: Chain Rule

7 10306
Q:

The minimum number of half years in which a sum of money kept at 60% compound interest will be quadrupled is ?

A) 2 B) 4
C) 3 D) 6
 
Answer & Explanation Answer: D) 6

Explanation:

Let us assume Amount be 100 Rs and we calculate in CI

 First year 60% of 100 = 60 amount (100+60) is 160

 Second year 60% of 160 = 96 amount (160+96) is 256

 Third year 60% of 256 =153.6 amount (256+153.6) is 409.6

 Here the Amount of 100 Rs is quadrapled in 3 years.

 One year contains 2 half years

 Three year has 6 half years.

 Therefore,  It takes 6 half years.

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Filed Under: Compound Interest
Exam Prep: CAT
Job Role: Bank PO

14 10301