Quantitative Aptitude - Arithmetic Ability Questions

Q:

Three solid spheres have their radii r1, r2 and r3. The spheres are melted to form a solid sphere of bigger radius. Then the radius of the new sphere is

A) r1+r2+r3 B) r12+r22+r3212
C) r13+r23+r3313 D) r14+r24+r3414
 
Answer & Explanation Answer: C) r13+r23+r3313

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

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Q:

The total surface area of a hemisphere is 166.32 sq cm, find its radius?

A) 4.2 cm B) 8.4 cm
C) 1.4 cm D) 2.1 cm
 
Answer & Explanation Answer: A) 4.2 cm

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

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Q:

Two circles are having radii 9 cm and 12 cm. The distance between their centres is 15 cm. What is the length (in cm) of their common chord?

A) 6.8 B) 13.6
C) 7.2 D) 14.4
 
Answer & Explanation Answer: D) 14.4

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

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Q:

A sum becomes Rs 8800 in 4 years at simple interest at the yearly interest rate of 25% per annum. What is the sum (in Rs)?

 

A) 4400 B) 6600
C) 7040 D) 6400
 
Answer & Explanation Answer: A) 4400

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Filed Under: Simple Interest
Exam Prep: Bank Exams

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Q:

If cost price of 5 cars is equal to selling price of 4 cars. Find the percentage of profit or loss?

A) 10% Profit B) 10% Loss
C) 25% Profit D) 25% Loss
 
Answer & Explanation Answer: C) 25% Profit

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

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Q:

Divide 32 into two parts such that the sum of the square of the parts is 674. What is the value of the parts?

A) 22, 10 B) 30, 2
C) 25, 7 D) 20, 12
 
Answer & Explanation Answer: C) 25, 7

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Filed Under: Problems on Numbers
Exam Prep: Bank Exams

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Q:

What is the area (in sq cm) of a rhombus if the lengths of the diagonals are 12 cm and 14 cm?

A) 42 B) 168
C) 84 D) 63
 
Answer & Explanation Answer: C) 84

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Filed Under: Area
Exam Prep: Bank Exams

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Q:

Δ DEF is right angled at E. If m ∠D = 30°. What is the length (in cm) of DE, if EF = 2√3 cm?

A) 3 B) 4
C) 6 D) 2
 
Answer & Explanation Answer: C) 6

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Filed Under: Area
Exam Prep: Bank Exams

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