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The total surface area of a hemisphere is 41.58 sq cm, find its radius.

A) 4.2 cm	B) 0.7 cm
C) 1.05 cm	D) 2.1 cm

A) 4.2 cm

B) 0.7 cm

C) 1.05 cm

D) 2.1 cm

Answer & Explanation Answer: D) 2.1 cm

Explanation:

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

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

A) 308 sq cm	B) 462 sq cm
C) 154 sq cm	D) 616 sq cm

A) 308 sq cm

B) 462 sq cm

C) 154 sq cm

D) 616 sq cm

Answer & Explanation Answer: C) 154 sq cm

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Filed Under: Simplification
Exam Prep: Bank Exams

Find the sum of interior angles of a decagon?

A) 1620°	B) 2520°
C) 1800°	D) 1440°

A) 1620°

B) 2520°

C) 1800°

D) 1440°

Answer & Explanation Answer: D) 1440°

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

In the first 43 overs of a cricket match, the run rate was 5 runs/over. Calculate the required run rate in the remaining 7 overs to reach the target of 285 runs?

A) 10.6	B) 11.2
C) 10	D) 9.4

A) 10.6

B) 11.2

C) 10

D) 9.4

Answer & Explanation Answer: C) 10

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Filed Under: Average
Exam Prep: Bank Exams

Find two numbers such that their mean proportion is 12 and third proportion is 768.

A) 3 and 24	B) 3 and 48
C) 6 and 48	D) 6 and 24

A) 3 and 24

B) 3 and 48

C) 6 and 48

D) 6 and 24

Answer & Explanation Answer: B) 3 and 48

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

What is the slope of the line perpendicular to the line passing through the points (-4,5) and (3,-2)?

A) 2	B) 3/7
C) -3/7	D) 1

A) 2

B) 3/7

C) -3/7

D) 1

Answer & Explanation Answer: D) 1

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

ΔABC is similar to ΔDEF. Length of AB is 12 cm and length of the corresponding side DE is 8 cm. What is the ratio of Perimeter of ΔABC : Perimeter of ΔDEF?