Quantitative Aptitude - Arithmetic Ability Questions

Q:

Average age of A and B, 2 years ago was 26. If the age of A, 5 years hence is 40 years, and B is 5 years younger to C, then find the difference between the age of A and C?

A) 6 B) 9
C) 12 D) 15
 
Answer & Explanation Answer: B) 9

Explanation:

Let the present ages of A & B to be ‘a’ & ‘b’ respectively.
Hence, 2 years ago, their ages must have been (a-2) & (b-2) respectively.
Average of their ages at that time = 26
Hence,
[(a-2)+(b-2)]/2 = 26
(a-2)+(b-2) = 52
a+b = 56
Age of A, 5 year hence = 40 years
Hence, (a+5) = 40
a = 35 years
Hence, b = 56 - 35 = 21 years
B = (C-5)
Hence, C = 21+5 = 26 years
Age difference between A & C = 35 - 26 = 9 years.

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Filed Under: Problems on Ages
Exam Prep: Bank Exams

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Q:

Mr. Murthy invested Rs. 16,000 in a scheme. How much will he get on matuirity, if he invested it at 20% per annum C.I. for 9 months, compounded quarterly?

A) Rs. 18523 B) Rs. 18521
C) Rs. 18524 D) Rs. 18522
 
Answer & Explanation Answer: D) Rs. 18522

Explanation:
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Q:

A man was 32 years of age when he had his first son. His wife was 35 years of age when his son attained the age of 7 years. The difference between the age of the father and the mother is _____

A) 7 years B) 3 years
C) 5 years D) 4 years
 
Answer & Explanation Answer: D) 4 years

Explanation:
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Filed Under: Problems on Ages
Exam Prep: Bank Exams

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Q:

A number is divided by 52, we get 27 as remainder. On dividing the same number by 13, what will be the remainder?

A) 2 B) 7
C) 1 D) None
 
Answer & Explanation Answer: C) 1

Explanation:
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Filed Under: Problems on Numbers
Exam Prep: Bank Exams , CAT

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Q:

Of the 5 subjects, the average marks of Rakesh in first 3 Subjects was 79 and the average marks in the last 3 subjects was 86. If his marks in the third subject was 80, then what was his average marks in all the 5 subjects?

A) 81 B) 82
C) 83 D) 85
 
Answer & Explanation Answer: C) 83

Explanation:
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Filed Under: Average
Exam Prep: Bank Exams

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Q:

If 35% of (x + y) = 40% of (x – y), then x is what percentage of y?

A) 1500 B) 150
C) 15 D) 105
 
Answer & Explanation Answer: A) 1500

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Filed Under: Percentage
Exam Prep: Bank Exams , CAT

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Q:

If the selling price is Rs 855 after getting a discount of 5%, what was the marked price?

A) Rs 897.75 B) Rs 812.25
C) Rs 814 D) Rs 900
 
Answer & Explanation Answer: D) Rs 900

Explanation:
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Q:

If (1/x) + (1/y) + (1/z) = 0 and x + y + z = 9, then what is the value of x3 + y3 + z3  3xyz?

A) 81 B) 361
C) 729 D) 6561
 
Answer & Explanation Answer: C) 729

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Filed Under: Simplification
Exam Prep: Bank Exams

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