Quantitative Aptitude - Arithmetic Ability Questions

Q:

What is 5% of 4000?

A) 180 B) 200
C) 220 D) 240
 
Answer & Explanation Answer: B) 200

Explanation:

5% of 4000

= 5 x 4000/100

= 5 x 40

= 200

 

Hence, 5% of 4000 = 200.

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

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Q:

A student multiplied a number by 5/6 instead of 6/5. What is the percentage error in the calculation?

A) 44 percent B) 30.56 percent
C) 15.28 percent D) 22 percent
 
Answer & Explanation Answer: B) 30.56 percent

Explanation:
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Filed Under: Percentage
Exam Prep: AIEEE , Bank Exams

2 2724
Q:

Sum of factors of 4b2c2-(b2+c2-a2)2 is 

A) a + b + c B) 2(a + b + c)
C) 0 D) 1
 
Answer & Explanation Answer: B) 2(a + b + c)

Explanation:
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0 2720
Q:

In how many different ways the letters of the word 'TRANSFORMER' can be arranged such that 'N' and 'S' always come together?

A) 112420 B) 85120
C) 40320 D) 1209600
 
Answer & Explanation Answer: D) 1209600

Explanation:

Given word is TRANSFORMER.

Number of letters in the given word = 11 (3 R's)

 

Required, number of ways the letters of the word 'TRANSFORMER' can be arranged such that 'N' and 'S' always come together is

10! x 2!/3!

= 3628800 x 2/6

= 1209600

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7 2720
Q:

Two partners M and N buy a car. M pays his share of 3/7th of the total cost of the car. M pays Rs. 31,540 less than N. What is the cost of the car?

A) Rs. 2,32,680 B) Rs. 2,03,175
C) Rs. 2,20,780 D) Rs. 1,85,780
 
Answer & Explanation Answer: C) Rs. 2,20,780

Explanation:
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Filed Under: Partnership
Exam Prep: Bank Exams

11 2713
Q:

If 9 * 6 = 45, 7 * 4 = 33, and 6 * 4 = 20, then what is the value of 5 * 3?

A) 24 B) 16
C) 13 D) 10
 
Answer & Explanation Answer: A) 24

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Filed Under: Simplification
Exam Prep: Bank Exams

8 2712
Q:

Two cars start from a house at an interval of 10 min and travel at a speed of 20 kmph. With how much speed should a woman coming from the opposite direction towards the house travel, to meet the cars at an interval of 8 min?

A) 5 B) 6
C) 7 D) 4
 
Answer & Explanation Answer: A) 5

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Filed Under: Time and Distance
Exam Prep: Bank Exams

9 2709
Q:

A bottle is full of dettol. One-third of it is taken out and then an equal amount of water is poured into the bottle to fill it. This operation is done four times. Find the final ratio of dettol and water in the bottle.

A) 13 : 55 B) 20 : 74
C) 16 : 65 D) 10 : 48
 
Answer & Explanation Answer: C) 16 : 65

Explanation:
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