Quantitative Aptitude - Arithmetic Ability Questions

Q:

Find the HCF & LCM of 16, 24.

A) 8, 48 B) 4, 12
C) 2, 24 D) 4, 48
 
Answer & Explanation Answer: A) 8, 48

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Q:

For triangle PQR, find equation of altitude PS if co­-ordinates of P, Q and R are (6,2), (0,3) and (­-4,5) respectively?

A) 2x -­ y = 14 B) 2x + y = 10
C) 2x -­ y = 10 D) 2x + y = 14
 
Answer & Explanation Answer: C) 2x -­ y = 10

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Q:

If a2+1a2 = 38, then find the value of a-1a?

A) 2 B) 4
C) 6 D) 8
 
Answer & Explanation Answer: C) 6

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Q:

If 5x + 5 > 2 + 2x and 5x + 3 ≤ 4x + 5; then x can take which of the following values?

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

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Q:

What should be added to 8(3x - ­4y) to obtain 18x ­- 18y?

A) 6x -­ 14y B) 14y + 6x
C)  14y -­ 6x D) 6xy
 
Answer & Explanation Answer: C)  14y -­ 6x

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Q:

In a Rhombus ABCD, measure of angle CAB is 25°, what is the measure of angle ABC?

A) 65° B) 50°
C) 40° D) 130°
 
Answer & Explanation Answer: D) 130°

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Q:

The mean of the 5 smallest numbers from a group is 15 while the mean of all the 13 members of the group taken together is 17. What is the mean of the 8 largest numbers?

A) 18.50 B) 17.75
C) 18.75 D) 18.25
 
Answer & Explanation Answer: D) 18.25

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Q:

The value of tan80° tan10° + sin270° + sin20

A) 0 B) 1
C) 2 D) 32
 
Answer & Explanation Answer: C) 2

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