Quantitative Aptitude - Arithmetic Ability Questions

Q:

What is the value of (cos 45 - 1/3) ?

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

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Q:

If x = 313- 3-13, then 3x2 + 9x is equal to

A) 5 B) 6
C) 7 D) 8
 
Answer & Explanation Answer: D) 8

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Q:

What is the value of {sin (90 – x) cos [π – (x – y)]} + {cos (90 – x) sin [π – (y – x)]}?

A) -cos y B) -sin y
C) cos x D) tan y
 
Answer & Explanation Answer: A) -cos y

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Q:

The height of a right circular cylinder is twice its radius of the base. If its height be 6 times its radius of the base, then the volume of the cylinder will be 539 cub.cm more. Assuming Π = 22/7, the height of the cylinder is

A) 5 cm B) 7 cm
C) 9 cm D) 11 cm
 
Answer & Explanation Answer: B) 7 cm

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Filed Under: Volume and Surface Area
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Q:

Among three numbers , second is twice the first and also thrice the third . If the average of the three numbers is 33 , then the largest number is

A) 36 B) 54
C) 62 D) 72
 
Answer & Explanation Answer: B) 54

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Filed Under: Problems on Numbers
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Q:

What number, from the following should be deducted from 1184 to make it exactly divisible by 21?

A) 15 B) 12
C) 8 D) 7
 
Answer & Explanation Answer: C) 8

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Q:

The simple and compound interest that can be earned in two years at the same rate is Rs 1500 and Rs 1575 respectively. What is the rate (% per annum) of interest?

A) 8 B) 10
C) 12 D) 5
 
Answer & Explanation Answer: B) 10

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Filed Under: Simple Interest
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Q:

Mother can bake 20 cakes in 4 hours, Mother and Dadima together can bake 60 cakes in 10 hours. How many cakes Dadima can bake in 30 hours?

A) 30 B) 75
C) 60 D) 25
 
Answer & Explanation Answer: A) 30

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Filed Under: Time and Work
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