Quantitative Aptitude - Arithmetic Ability Questions

Q:

What is the value of sec 4π/3?

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

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Q:

28% of a number is 35. What is the number?

A) 108 B) 120
C) 80 D) 125
 
Answer & Explanation Answer: D) 125

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Filed Under: Percentage
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Q:

The mean of a distribution is 20 and the standard deviation is 4. What is the value of the coefficient variation?

A) 10% B) 20%
C) 40% D) 60%
 
Answer & Explanation Answer: B) 20%

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Q:

The sum for 2 years gives a compound interest of Rs 3225 at 15% rate. Then sum is

A) 10000 B) 20000
C) 15000 D) 32250
 
Answer & Explanation Answer: A) 10000

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Q:

What is the value of a-b when a2+b2-6a-6b+18 = 0 ?

A) 0 B) 3
C) 6 D) 9
 
Answer & Explanation Answer: A) 0

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Q:

­ A wooden bowl is in shape of a hollow hemisphere of internal radius 8 cm and thickness 1 cm. Find the total surface area of the bowl?

A) 964.85 sq cms B) 1125.14 sq cms
C) 1687.71 sq cms D) 281.29 sq cms
 
Answer & Explanation Answer: A) 964.85 sq cms

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Filed Under: Volume and Surface Area
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Q:

The largest chord of the circle has a length of 20.4 cm. The radius of the circle will be_____.

A) 10.2 cm B) greater than 10.2 cm
C) greater than and equal to 10.2 cm D) less than 10.2 cm
 
Answer & Explanation Answer: A) 10.2 cm

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Filed Under: Volume and Surface Area
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Q:

In the given figure, P  is the center of the circle. If QS = PR, then what is the ratio of angles RSP to the TPR ?

A) 1 : 4 B) 2 : 5
C) 1 : 3 D) 2 : 7
 
Answer & Explanation Answer: C) 1 : 3

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Filed Under: Volume and Surface Area
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