Aptitude and Reasoning Questions

Q:

Pointing to a person, a man said to a woman, "His mother is the only daughter of your father." How was the woman related to the person ? 

A) Aunt B) Mother
C) Wife D) Daughter
 
Answer & Explanation Answer: A) Aunt

Explanation:

Daughter of your father — Your sister. So, the person's mother is woman's sister or the woman is person's aunt. 

 

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Filed Under: Blood Relations

1336 87380
Q:

If each edge of a cube is increased by 50%, find the percentage increase in Its surface area

A) 125% B) 150%
C) 175% D) 110%
 
Answer & Explanation Answer: A) 125%

Explanation:

Let the edge = a cm   

So increase by 50 % = a + a/2 = 3a/2  

Total surface Area of original cube = 6a2  

TSA of new cube = 63a22 =69a24=  13.5a2   

Increase in area = 13.5a2-6a2 =7.5a2  

 7.5a2 Increase % =7.5a26a2×100 = 125%

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484 87139
Q:

If a+b=5 and 3a+2b=20,then (3a+b)will be :

 

A) 20 B) 15
C) 25 D) 30
 
Answer & Explanation Answer: C) 25

Explanation:

a+b=5   ...(1)    and    3a+2b=20 ...(2)

 

Multiplying (1) by 2 and subtracting from (2), we get : a=10.

 

Putting a=10 in (1), we get : b=-5

 

Therefore,   (3a+b) = 3 x 10+(-5)=30-5=25.

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Filed Under: Simplification
Exam Prep: CAT
Job Role: Bank Clerk

24 86859
Q:

What should come in place of question mark (?) in the following question?

115 ÷ 5 + 12 × 6 = ? + 64 ÷ 4 - 35

A) 95 B) 136
C) 102 D) 74
 
Answer & Explanation Answer:

Explanation:

 As per the BODMAS rule, the priority in which the operations should be done is:

Priority wise operations Symbol
B-Bracket ()
O-of of
D-Division /,÷
M-Multiplication *,x
A-Addition +
S-Subtraction -

Note: Addition and subtraction can be treated on same priority (from left to right) when they are in consecutive order.

(115/5) + 12 × 6 = ? + (64/4) – 35 23 + 72 = ? + 16 – 35 95 = ? - 19 95+19 = ? ? = 114

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Filed Under: Simplification

2 86848
Q:

40% of 75 + 80% of 25 = K% of 250

 

Find the value of K?

A) 10 B) 20
C) 30 D) 35
 
Answer & Explanation Answer: B) 20

Explanation:

From the given data,

 

40100 x 75 + 80100 x 25 = K100 x 25030 + 20 = 5K250 x 2 = 5KK = 1005 = 20

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Filed Under: Percentage
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

12 86738
Q:

In the following number series only one number is wrong. Find out the wrong number ?

6, 15, 35, 63, 143, 221, 323

A) 143 B) 63
C) 323 D) 35
 
Answer & Explanation Answer: B) 63

Explanation:

Here the series follows the pattern that, product of succesive prime numbers i.e,

 2 × 3 = 6

 3 × 5 = 15

 5 × 7 = 35

 7 × 11 = 77

 11 × 13 = 143

 13 × 17 = 221

 17 × 19 = 323

So here in place of 77 the number 63 is written.

So the wrong number is 63.

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Filed Under: Odd Man Out
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Bank Clerk , Bank PO

7 86511
Q:

Select the related word/letters/number from the given alternatives.

 

Screw Gauge : Thickness : : Sphygmomanometer : ?

A) Blood pressure B) Haemoglobin
C) Keratin D) Insulin
 
Answer & Explanation Answer: A) Blood pressure

Explanation:
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Filed Under: Analogy
Exam Prep: Bank Exams

0 86384
Q:

Find the y-intercept of the line joining two points (1, 3) and (3, 5).

 

A) -2 B) 0
C) 2 D) 4
 
Answer & Explanation Answer: C) 2

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

6 86261