Quantitative Aptitude - Arithmetic Ability Questions

Q:

From a point P on a level ground , the angle of elevation to the top of the tower is 30° . If the tower is 100m high , the distance of point P from the foot of the tower is ( Take √3 = 1.73)

A) 149 m B) 156 m
C) 173 m D) 188 m
 
Answer & Explanation Answer: C) 173 m

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Q:

If -3/2 + (2/3)(3x + 9) = x/2, then what is the value of x?

A) -9 B) 11
C) 9 D) -3
 
Answer & Explanation Answer: D) -3

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Q:

What is the value of Cot 45° - (1/√3)Cosec 60°?

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

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Q:

If x – 4y = 0 and x + 2y = 24, then what is the value of (2x + 3y)/(2x – 3y)?

A) 9/5 B) 11/5
C) 13/7 D) 9/7
 
Answer & Explanation Answer: B) 11/5

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Q:

If (x  2)2 + (y + 3)2 + (z  15)2 = 0, then what is the value of x + y + z – 5?

A) 5 B) 9
C) 15 D) 20
 
Answer & Explanation Answer: B) 9

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Q:

If a3 + 3a2 + 9a = 1, then what is the value of a3 + (3/a)?

A) 31 B) 26
C) 28 D) 24
 
Answer & Explanation Answer: C) 28

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Q:

In a bag the ratio of red balls to green balls is 4 : 9. If 6 more green balls were added to the bag, the ratio of red balls to green balls would become 1 : 3. How many red balls are there in the bag?

A) 9 B) 10
C) 8 D) 12
 
Answer & Explanation Answer: C) 8

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Filed Under: Ratios and Proportions
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Q:

If 3√2 + √18 + √50 = 15.55, then what is the value of √32 + √72?

A) 13.22 B) 10.83
C) 14.13 D) 16.54
 
Answer & Explanation Answer: C) 14.13

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