Quantitative Aptitude - Arithmetic Ability Questions

Q:

Find the value of  x3 - y3, if x - y = 4 and xy = 12.

A) 198 B) 208
C) 218 D) 228
 
Answer & Explanation Answer: B) 208

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Q:

Expanded and simplification of (x + 3)(x - 1) will be equal to

A) x2+ 2x - 3 B) x2 + 3x + 2
C) x2 - 2x + 3 D) x2 + 3x - 2
 
Answer & Explanation Answer: A) x2+ 2x - 3

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Q:

The mean of 10 observations is 17. One more observation is included and the new mean becomes 16. The 11th observation is

 

A) 16 B) 8
C) 6 D) 12
 
Answer & Explanation Answer: C) 6

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Q:

If 4x - 5y = -37 and 7x + y = -16, then x - y = ______

A) -8 B) 8
C) 2 D) -2
 
Answer & Explanation Answer: A) -8

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Q:

What is the value of tan 7π/4?

A) √3 B) -1/2
C) √3/2 D) -1
 
Answer & Explanation Answer: D) -1

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Q:

The 3rd and 9th term of an arithmetic progression are -8 and 10 respectively. What is the 16th term?

A) 34 B) 28
C) 25 D) 31
 
Answer & Explanation Answer: D) 31

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Filed Under: Numbers
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Q:

If x3 + y3 + z3 = 3(1 + xyz), P = y + z  x, Q = z + x  y and R = x + y  z, then what is the value of P3 + Q3 + R3  3PQR?

A) 9 B) 8
C) 12 D) 6
 
Answer & Explanation Answer: C) 12

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Q:

The cash difference between the selling price of an article at a profit of 4% and 6% is Rs. 3. The ratio of two selling prices is:

A) 51:53 B) 55:53
C) 52:53 D) 54:53
 
Answer & Explanation Answer: C) 52:53

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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