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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

If (x + y)2 - xy = 0, then find the value of x3 - y3x - y.

 

A) 2 B) 3
C) 0 D) 5
 
Answer & Explanation Answer: C) 0

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

A sum of Rs. 427 is to be divided among A, B and C such that 3 times A’s share, 4 tunes B’s share and 7 times C’s share are all equal. The share of C is :

A) 84 B) 140
C) 196 D) 240
 
Answer & Explanation Answer: A) 84

Explanation:

3A = 4B = 7C = k,Then A = k/3, B = k/4 and C= k/7.

A : B : C = k/3 : k/4 : k/7 = 28:21 :12.

Cs share = Rs. [427 x (12/61)] = Rs. 84

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Filed Under: Ratios and Proportions

183 53668
Q:

If 7x + 9y3x - 4y = 198, then the value of x/y is

 

A) 148/1 B) 1/148
C) 145/1 D) 1/145
 
Answer & Explanation Answer: A) 148/1

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Q:

A man sitting in a train which is traveling at 50 kmph observes that a goods train, traveling in opposite direction, takes 9 seconds to pass him. If the goods train is 280 m long, find its speed.?

A) 60 B) 62
C) 64 D) 65
 
Answer & Explanation Answer: B) 62

Explanation:

Relative speed =280/9  m / sec = (280/9*18/5)  kmph = 112 kmph.

 

Speed of goods train = (112 - 50) kmph = 62 kmph.

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Filed Under: Problems on Trains

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Q:

If Sinx = 4/5, then 1 + Tan2x =

 

A) 9/25 B) 25/16
C) 4/25 D) 25/9
 
Answer & Explanation Answer: D) 25/9

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Q:

Correct expression of 0.018¯ = ?

 

A) 1/55 B) 18/100
C) 18/1000 D) 1/66
 
Answer & Explanation Answer: C) 18/1000

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Q:

Which of the following statement(s) is/are CORRECT?

 

I. (√11 + √2) > (√8 + √5)

II. (√10 + √3) > (√7 + √6

 

A) Only I B) Only II
C) Neither I nor II D) Both I and II
 
Answer & Explanation Answer: C) Neither I nor II

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Q:

Aman started a business investing Rs. 70,000. Rakhi  joined him after six months with an amount of Rs. 1,05,000 and Sagar joined them with Rs. 1.4 lakhs after another six months. The amount of profit earned should be distributed in what ratio among Aman, Rakhi and Sagar respectively, 3 years after Aman started the business ?

A) 11 : 13 : 15 B) 11 : 13 : 17
C) 12 : 17 : 18 D) 12 : 15 :16
 
Answer & Explanation Answer: D) 12 : 15 :16

Explanation:

Aman : Rakhi : Sagar = (70000 x 36) : (105000 x 30) : (140000 x 24) = 12 : 15 : 16.

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Filed Under: Partnership

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