Aptitude and Reasoning Questions

Q:

D and E are points on side AB and AC of ΔABC. DE is parallel to BC. If AD:DB = 2:3 and area of ΔABC is 100 sq cm, what is the area (in sq cm) of quadrilateral BDEC?

A) 84 B) 16
C) 25 D) 75
 
Answer & Explanation Answer: A) 84

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Filed Under: Area
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Q:

The area of a circle is 38.5 cm2. Find its circumference (in cm).

A) 1848 B) 1716
C) 1621 D) 1587
 
Answer & Explanation Answer: A) 1848

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Q:

Which of the following numbers is divisible by 12?

A) 73412 B) 63412
C) 83412 D) 93412
 
Answer & Explanation Answer: C) 83412

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Filed Under: Problems on Numbers
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Q:

40.36 ­- (9.347 -­ x ) -­ 29.02 = 3.68. Find x.

A) -56.353 B) 1.687
C) -17.007 D) 82.407
 
Answer & Explanation Answer: B) 1.687

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Filed Under: Simplification
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Q:

If tan (5x ­- 10°) = cot (5y + 20°), then the value of x + y is

A) 15° B) 16°
C) 22.5° D) 24°
 
Answer & Explanation Answer: B) 16°

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Q:

The radius of a sphere and right circular cylinder is 'r'. Their volumes are equal. The ratio of the height and radius of the cylinder is:

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

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Filed Under: Volume and Surface Area
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Q:

If the side AB of an equilateral triangle ABC is equal to 12 cm. Calculate the length( in cm) of the AO, if O is the centroid of the triangle.

A) 2√3 B) 3√3
C) 4√3 D) 9√3
 
Answer & Explanation Answer: C) 4√3

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Filed Under: Volume and Surface Area
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Q:

A constituency is divided in four regions A, B, C and D. Two candidates X & Y contested the last election from that constituency. The adjoining graph gives the break up of voting in the four regions. Study the graph and answer the following questions.

Approximately how much percent of voters did not caste their votes?

A) 4.9 B) 4.5
C) 0.23 D) 23
 
Answer & Explanation Answer: A) 4.9

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