Quantitative Aptitude - Arithmetic Ability Questions

Q:

The solution set of 4x - 3y = 47 and 3x + y = 32 is

A) {(15, 3)} B) {(4, 12)}
C) {(11, -1)} D) {(12, 3)}
 
Answer & Explanation Answer: C) {(11, -1)}

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Filed Under: Simplification
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Q:

The sum of a fraction and 3 times its reciprocal is 37/10. What is the fraction?

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

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Q:

A shopkeeper marks his goods 40% above the cost price and allows a discount of 25% on it. His gain % is

A) 5% B) 10%
C) 15% D) 20%
 
Answer & Explanation Answer: A) 5%

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Filed Under: Percentage
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Q:

An equilateral triangle ABC is inscribed in a circle of radius 20√3.
The centroid of the triangle ABC is at a distance d from the vertex A. What is d equal to ?

A) 15 cm B) 20 cm
C) 20√3 cm D) 30√3 cm
 
Answer & Explanation Answer: C) 20√3 cm

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

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Q:

If tan(A/2) = x, then the value of x is

A) (1 - cosA)/sinA B) (1 + cosA)/sinA
C) √[(1 - cosA)/sinA] D) √[(1 + cosA)/sinA]
 
Answer & Explanation Answer: A) (1 - cosA)/sinA

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Q:

If one angle of a triangle is equal to half the sum of the other two equal angles, then the triangle is

A) isosceles B) scalene
C) equilateral D) right-angled
 
Answer & Explanation Answer: C) equilateral

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Q:

In an exam, the avarage marks obtained by John in English, Maths, Hindi and Drawing were 50. His average marks in Maths, Science, Social Studies and Craft were 70. If the average marks in all seven subjects is 58, his score in maths was

A) 50 B) 52
C) 60 D) 74
 
Answer & Explanation Answer: D) 74

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Filed Under: Average
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Q:

A train runs at 80 kmph for the first 40 km and the next 30 km at 60 kmph. Find the average speed.

A) 62 kmph B) 64 kmph
C) 65 kmph D) 70 kmph
 
Answer & Explanation Answer: D) 70 kmph

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Filed Under: Problems on Trains
Exam Prep: Bank Exams

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