Quantitative Aptitude - Arithmetic Ability Questions

Q:

Δ ABC is right angled at B. If m∠A = 60°, then what is the value of 2 Sec C x 1/2 Sin A?

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

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Q:

ΔPQR is right angled at Q. If secP = 13/5, then what is the value of sinR ?

A) 5/13 B) 5/12
C) 13/5 D) 13/12
 
Answer & Explanation Answer: A) 5/13

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Q:

The factors of x2 + 8x + 12 are

A) (x+6)(x+2) B) (x-6)(x+2)
C) (x-4)(x-4) D) (x+6)(x-2)
 
Answer & Explanation Answer: A) (x+6)(x+2)

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Q:

What is the distance between the points (4,7) and (­1,­5)?

A) 10 units B) 13 units
C) 5 units D) 11 units
 
Answer & Explanation Answer: B) 13 units

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Q:

A spaceship travels at 1,260 km/h. How many metres does it travel in 1/10 th of a second?

A) 126 B) 35
C) 36 D) 125
 
Answer & Explanation Answer: B) 35

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Filed Under: Time and Distance
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Q:

A solid sphere and a solid hemisphere have the same total surface area. The ratio of their volumes is (Take, π=22/7)

A) 3√3 : 4 B) 4 : 3√3
C) 3 : 4√3 D) 1 : 12√3
 
Answer & Explanation Answer: A) 3√3 : 4

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Filed Under: Volume and Surface Area
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Q:

If in a two digit number, the digit at unit place is y and the digit at tens place is 5, then the number is

A) 50y + y B) 5y + 5
C) 50 + y D) 50y + 5
 
Answer & Explanation Answer: C) 50 + y

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Q:

Shivam is 10% less efficient than Vivek. If Vivek can make a helmet in 9 days, then in how many days Shivam can complete the same work?

 

A) 15 B) 12
C) 10 D) 8
 
Answer & Explanation Answer: C) 10

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Filed Under: Time and Work
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