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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

Find the value of p if ­-3x -­ 11, x + p and 5x + 7 are in arithmetic progression.

A) 9 B) 2
C) -9 D) -2
 
Answer & Explanation Answer: D) -2

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Q:

If x-1x = 10, then find the value of x4+1x2

A) 98 B) 100
C) 102 D) 106
 
Answer & Explanation Answer: C) 102

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Q:

Find  two  natural  numbers  whose  sum  is  85 andtheleast common multiple is 102.

A) 30 & 55 B) 17 & 68
C) 35& 55 D) 51 & 34
 
Answer & Explanation Answer: D) 51 & 34

Explanation:

Let a + b = 85→b = 85 –a

LCM(a,b) =102→ab = 102

k→a(85 –a) = 102k, where k is a natural number.

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Q:

In the following question, select the odd letter/letters from the given alternatives.

A) ADG B) HKN
C) RUY D) GJM
 
Answer & Explanation Answer: C) RUY

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Q:

If Tan A = 15/8 and Tan B = 7/24, then Cos(A - B) = ?

A) 297/425 B) 304/425
C) 87/425 D) 416/425
 
Answer & Explanation Answer: A) 297/425

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Q:

Point A divides segment BC in the ratio 4:1. Co-ordinates of B are (6 , 1) and C are (7/2 , 6). What are the co-ordinates of point A?

A) (4 , 3) B) (4 , 5)
C) (2 , 5) D) (3 , 5)
 
Answer & Explanation Answer: B) (4 , 5)

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Q:

Ram and Rahim standing at a distance of 680m run towards each other at a speed of 8 m/sec and 9 m/sec respectively. After how long will they meet?

A) 17 sec B) 24 sec
C) 40 sec D) 36 sec
 
Answer & Explanation Answer: C) 40 sec

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Q:

While selling a shirt, a shopkeeper gives a discount of 7%. If he gives discount of 9% he earns Rs. 15 less on profit. The market price of the shirt is :­

A) 712 B) 787
C) 750 D) 697
 
Answer & Explanation Answer: C) 750

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