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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

One side of a rectangular field is 15m and one of its diagonal is 17m. Find the area of field?

A) 110 B) 120
C) 130 D) 140
 
Answer & Explanation Answer: B) 120

Explanation:

Other side = [(17 x 17) - (15 x 15)] = (289 - 225) = 8m
Area = 15 x 8 =120 sq. m

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Filed Under: Area
Exam Prep: Bank Exams
Job Role: Bank PO

73 38523
Q:

The profit earned by selling an article for Rs 900 is double the loss incurred when the same article is sold for Rs.490. At what price should the article be sold to make 25% profit?

A) 715 B) 469
C) 400 D) 750
 
Answer & Explanation Answer: D) 750

Explanation:

Let C.P be Rs. x 

900 - x = 2(x - 450)     => x = Rs.600   

 

C.P = 600 gain required is 25% 

S.P = [(100+25) x 600] / 100 = Rs.750

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Filed Under: True Discount

61 38434
Q:

A and B start a business jointly. A invests Rs. 16,000 for 8 months and B remains in  the business for 4 months, Out of total profit, B claims - of the profit. How much money was contributed by B ?

A) 12000 B) 12800
C) 13000 D) 14500
 
Answer & Explanation Answer: B) 12800

Explanation:

Let the total profit be Rs. x. Then, B = 2x/7 and A = (x - 2x /7) =  5x / 7.

So, A : B = 5x/7 : 2x/7 = 5 : 2.

Let B s capital be Rs. y. Then, (16000 * 8) / ( y * 4) = 5/2  <=> (16000 * 8 * 2) / (5 * 4) = 12800..  

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Filed Under: Partnership

35 38376
Q:

The age of a man is 4 times of his son. Five years ago, the man was nine times old as his son was at that time. The present age of man is?

Answer

Let the son's age be x years and the father's age be 4x years 



       5x = 40


        x = 8


\inline \therefore present age of the father = \inline 4x = \inline 4\times 8 = 32 years

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Subject: Problems on Ages

204 38230
Q:

In the following question, correct the equation by interchanging two signs.

4 x 3 – 6 ÷ 2 + 7 = 8

A) – and + B) x and –
C) ÷ and x D) x and +
 
Answer & Explanation Answer: A) – and +

Explanation:
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Filed Under: Simplification
Exam Prep: AIEEE , Bank Exams , CAT

0 38202
Q:

A contractor undertakes to do a piece of work in 40 days. He engages 100 men at the begining and 100 more  after 35 days and completes the work in stipulated time. If he had not  engaged  the additional men, how many days  behind schedule would it be finished?

A) 3 B) 5
C) 6 D) 9
 
Answer & Explanation Answer: B) 5

Explanation:

[(100 x 35) + (200 x 5)]men can finish the work in 1 day 

Therefore, 4500 men can finish the work in 1 day. 100 men can finish it in  4500/100= 45 days.

This is 5 days behind Schedule

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Filed Under: Chain Rule

64 38200
Q:

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

534.596 + 61.472 - 496.708 = ? + 27.271

A) 126.631  B) 62.069
C) 72.089 D) 132.788
 
Answer & Explanation Answer: C) 72.089

Explanation:

534.596 + 61.472 – 496.708 = ? + 27.271

596.068 – 496.708 = ? + 27.271

? = 99.36 – 27.271

? = 72.089.

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Filed Under: Simplification
Exam Prep: AIEEE , Bank Exams , GATE

0 38174
Q:

Find the odd man out?

3, 12, 39, 120, 364

A) 364 B) 120
C) 39 D) 3
 
Answer & Explanation Answer: A) 364

Explanation:

The given number series is 3, 12, 39, 120, 364

33 + 32 = 3 + 9 = 1212 + 33 = 12 + 27 = 3939 + 34 = 39 + 81 = 120120 + 35 = 120 + 243 = 363 (Not 364)

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

7 38158