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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

The radius of the circle is 14 cm, an arc is subtend an angle 54 degree at center. Find the length of the arc (in cm).

A) 12.8 B) 13.2
C) 13.8 D) 14.2
 
Answer & Explanation Answer: B) 13.2

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Q:

What should be added to 5(2x-y) to obtain 4(2x - 3y) + 5(x + 4y)?

A) 3x - 13y B) 3x + 13y
C) 13x - 3y D) 13x + 3y
 
Answer & Explanation Answer: B) 3x + 13y

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Filed Under: Simplification
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Q:

Point A divides segment BC in the ratio 4:1. Co-ordinates of B are (6 , 1) and C are (7/2 , 6). What are the co-ordinates of point A?

A) (4 , 3) B) (4 , 5)
C) (2 , 5) D) (3 , 5)
 
Answer & Explanation Answer: B) (4 , 5)

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Q:

The average age of students of a class is 15.8 years. The average age of boys in the class is 16.4 years and that of the girls is 15.4 years. The ratio of the number of boys to the number of girls in the class is:-

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

Explanation:

Let the ratio be x : y
Total boys = 16.4 X x
Total girls = 15.4 X y
Total number of students in class = 16.4x + 15.4y
The average age of all students is 15.8
The total age of boys is 15.8x
The total age of girls is 15.8y
16.4x + 15.4y = 15.8x + 15.8y
0.6 x = 0.4 y
x/y = 0.4/0.6 = 2/3

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Filed Under: Ratios and Proportions
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Q:

AB is the diameter of a circle with center O and P be a point on its circumference. If ∡POA = 120°, then the value of ∡PBO is

A) 30° B) 60°
C) 50° D) 40°
 
Answer & Explanation Answer: B) 60°

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Q:

Find the odd word/letters/number from the given alternatives.

A) 63­-36 B) 45-­74
C) 48-­84 D) 26-­62
 
Answer & Explanation Answer: B) 45-­74

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Filed Under: Odd Man Out
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Q:

Find out the odd word/letters/number/number pair from the given alternatives.

A) MNO B) LSS
C) PQR D) TUV
 
Answer & Explanation Answer: B) LSS

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Q:

In the following question, select the odd letters from the given alternatives.

A) CD B) PR
C) ST D) WX
 
Answer & Explanation Answer: B) PR

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Filed Under: Odd Man Out
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