Quantitative Aptitude - Arithmetic Ability Questions

Q:

An engineering student has to secure 25% marks to pass. He gets 56 and fails by 34 marks. Find the maximum marks.

A) 385 marks B) 360 marks
C) 410 marks D) 435 marks
 
Answer & Explanation Answer: B) 360 marks

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Filed Under: Percentage
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Q:

The difference between simple and compound interests compounded annually on a certain sum of money for 2 years at 18% per annum is Rs 81. The sum is ____.

A) Rs 2500 B) Rs 5000
C) Rs 10000 D) Rs 7500
 
Answer & Explanation Answer: A) Rs 2500

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Filed Under: Compound Interest
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Q:

Factorise 24x2 - 54x - 15

A) 3(2x + 5)(4x - 1) B) 3(2x - 5)(4x + 1)
C) 2(3x - 5)(4x + 1) D) 4(2x - 5)(3x + 1)
 
Answer & Explanation Answer: B) 3(2x - 5)(4x + 1)

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

What is the value of Sin 60° + (1/2)Cosec 45°?

A) (√3 + 2)/2 B) (√3 + √2)/√2
C) (√3 + 2)/√2 D) (√3 + √2)/2
 
Answer & Explanation Answer: D) (√3 + √2)/2

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Q:

The average age of 30 boys in a class is 10 years. If the age of their teacher is also included, the average increases by one year. The teacher's age in years is

A) 38 B) 40
C) 30 D) 41
 
Answer & Explanation Answer: D) 41

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Filed Under: Problems on Ages

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Q:

The ratio of present ages of Rambha and Sarvesh is 8:5. After 7 years the ratio of their ages will be 5:4. What is Rambha's present age?

A) 5 B) 30
C) 8 D) 48
 
Answer & Explanation Answer: C) 8

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Filed Under: Problems on Ages
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Q:

What will be the sum of the measures all the interior angles of a polygon having 14 sides?

A) 2520° B) 2160°
C) 2880° D) 3240°
 
Answer & Explanation Answer: B) 2160°

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Filed Under: Volume and Surface Area
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Q:

The average of 10 numbers is X and one of the number is 38. If 38 is replaced with 19, then what will be the new average?

A) X– (1/2)   B) X – (1/19)  
C) X – (19/10)   D) X – (19/9)
 
Answer & Explanation Answer: C) X – (19/10)  

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Filed Under: Average
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