Quantitative Aptitude - Arithmetic Ability Questions

Q:

If x = √2+1, then the value of x4-1/x4

A) 8√2 B) 18√2
C) 6√2 D) 24√2
 
Answer & Explanation Answer: D) 24√2

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If 7x + 6y = 5xy and 10x ­- 4y = 4xy, then value of x and y is

A) 3, 2 B) 2, 3
C) 4, 2 D) 5, 6
 
Answer & Explanation Answer: C) 4, 2

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Q:

In a class of 50 students there are 27 boys. The average weight of these boys is 72 Kg and average weight of the full class is 55.44 kgs. What is the average weight (in kgs) of the girls of the class?

A) 42 B) 48
C) 30 D) 36
 
Answer & Explanation Answer: D) 36

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Filed Under: Average
Exam Prep: Bank Exams

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Q:

The ratio of present ages of Ramya and Saurabh is 8:7. After 10 years the ratio of their ages will be 12:11. What is Ramya's present age?

A) 20 B) 14
C) 63 D) 45
 
Answer & Explanation Answer: A) 20

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Filed Under: Problems on Ages
Exam Prep: Bank Exams

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Q:

In the figure, a circle touches quadrilateral ABCD. If AB = 2x + 3, BC = 3x - 1, CD = x + 6 and DA = x + 4, then what is the value of x?

A) 3 B) 4.5
C) 6 D) 6.5
 
Answer & Explanation Answer: C) 6

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

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Q:

Manish, Mukesh and Sachin are Accountants. Mukesh can filea return in 5 hours and Sachin in 4 hours alone. All three together can do it in 2 hours. In what time (in hrs) will Manish do the work?

A) 15 B) 20
C) 17 D) 10
 
Answer & Explanation Answer: B) 20

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Filed Under: Time and Work
Exam Prep: Bank Exams

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Q:

When a number is increased by 28, it becomes 107% of itself. What is the number?

A) 336 B) 420
C) 400 D) 252
 
Answer & Explanation Answer: C) 400

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Q:

The height and the slant height of a right circular cone are 24 cm and 25 cm, respectively. Considering π as 22/7 , find the curved surface area of the said cone.

A) 550 cm2 B) 572 cm2
C) 528 cm2 D) 539 cm2
 
Answer & Explanation Answer: A) 550 cm2

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Filed Under: Height and Distance
Exam Prep: AIEEE , Bank Exams , CAT

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