Quantitative Aptitude - Arithmetic Ability Questions

Q:

Four numbers A, B, C and D are such that their overall average is 16. The average of A and B is 9.5. The average of C and D is

A) 22.5 B) 23
C) 21.5 D) 25.5
 
Answer & Explanation Answer: A) 22.5

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Filed Under: Average
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Q:

A circle is inscribed in a square. If the length of the diagonal of the square is 14√2 cm, what is the area (in sq cm) of the circle?

A) 308 B) 462
C) 154 D) 616
 
Answer & Explanation Answer: C) 154

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Filed Under: Volume and Surface Area
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Q:

Curved surface area of a cylinder is 440 sq cm. If circumference of its base is 44 cm, what is the volume of the cylinder? (Take π = 22/7)

A) 1540 cubic cm B) 3080 cubic cm
C) 770 cubic cm D) 2310 cubic cm
 
Answer & Explanation Answer: A) 1540 cubic cm

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Filed Under: Volume and Surface Area
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Q:

A circle has points P, Q, R on a circle in such a way that angle PQR is 60 deg and angle QRP is 80 deg. Calculate the angle subtended by an arc QR at the centre.

 

A) 40 deg B) 80 deg
C) 100 deg D) 120 deg
 
Answer & Explanation Answer: B) 80 deg

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Filed Under: Area
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Q:

Consider the two similar triangles ABC and DEF. Which of the following is correct about the ratio of the area of the triangle ABC and DEF?

 

 

A) ABDE=EFBC=ACDF B) ABDE2=BCEF2=ACDF2
C) ABDE=BCEF=DFAC D) None of these
 
Answer & Explanation Answer: B) ABDE2=BCEF2=ACDF2

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Filed Under: Area
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Q:

What is the value of 2 consecutive natural numbers, sum of whose squares is 145?

A) 8, 9 B) 6, 7
C) 13, 14 D) 9, 10
 
Answer & Explanation Answer: A) 8, 9

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Filed Under: Numbers
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Q:

The LCM of 48 and 54 is

A) 6 x 8 x 9 B) 48 x 54
C) 6 x 2 x 9 D) 6 x 8 x 3
 
Answer & Explanation Answer: A) 6 x 8 x 9

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Filed Under: HCF and LCM
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Q:

ΔDEF is right angled at E. If cosecD = 5/4, then what is the value of cosecF?

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

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Filed Under: Simplification
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