Quantitative Aptitude - Arithmetic Ability Questions

Q:

If x = y + 2 then x3 -  y3 -  z3 is

A) 0 B) 3xyz
C) -3xyz D) 1
 
Answer & Explanation Answer: B) 3xyz

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1942
Q:

Surya works 3 times as fast as Ramya and is able to complete a work in 40 days less than the number of days taken by Ramya. Find the time in which they can complete the work together.

A) 20 days B) 15 days
C) 25 days D) 30 days
 
Answer & Explanation Answer: B) 15 days

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Filed Under: Time and Work
Exam Prep: Bank Exams

0 1942
Q:

A canal of a village can be cleaned by 24 villagers in 12 days. The number of days in which 36 villagers can clean the canal is ?

A) 18 B) 8
C) 72 D) 16
 
Answer & Explanation Answer: B) 8

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Filed Under: Time and Work
Exam Prep: Bank Exams

0 1941
Q:

The average age of 80 boys in a class is 15 years. The average age of a group of 15 boys in the class is 16 years and the average age of another 25 boys in the class is 14 years. What is the average age of the remaining boys in the class?

A) 15.25 years B) 14 years
C) 14.75 years D) Cannot be determined
 
Answer & Explanation Answer: A) 15.25 years

Explanation:

Total sum of age of 80 students of the class = 15 X 80 = 1200 years
15 students → 15 X 16 = 240 years
25 students → 25 X 14 = 350 years
Sum of 40 students = 590 years
Total age of remaining 40 students = 1200 – 590 = 610
So, average age = 15.25 years

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Filed Under: Average
Exam Prep: Bank Exams

0 1941
Q:

A total amount of Rs. 1560 is to be divided among A, B, C such that A gets 50% of what B gets and B gets 20% of what C gets. How much will B get ?

A) Rs. 540 B) Rs. 440
C) Rs. 280 D) Rs. 240
 
Answer & Explanation Answer: D) Rs. 240

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Filed Under: Percentage
Exam Prep: Bank Exams

1 1941
Q:

What is the value of sinAtanA/(1 - cosA)?

A) 1 - secA B) 1 + secA
C) 1 + cotA D) 1 - cotA
 
Answer & Explanation Answer: B) 1 + secA

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Q:

In these tests find the Odd figure out

A) a B) b
C) c D) d
 
Answer & Explanation Answer: D) d

Explanation:

It has odd number of sides while others have even number of sides.

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

0 1941
Q:

Shaan got a total of Rs. 912 in the denomination of equal numbers of Rs. 1, Rs. 5 and Rs. 10 coins. How many coins do Shaan posses?

A) 16 B) 57
C) 171 D) 323
 
Answer & Explanation Answer: C) 171

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1940