Quantitative Aptitude - Arithmetic Ability Questions

Q:

What is the value of 2+2+2+2.......

A) 1 B) 2
C) 3 D) 4
 
Answer & Explanation Answer: D) 4

Explanation:

Let 2+√2+√2..... = t
2+√t = t
t - 2 = √t
t = 4

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Filed Under: Simplification
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Q:

Find the remainder in the expression 550×651×6627?

A) 5 B) 4
C) 0 D) 3
 
Answer & Explanation Answer: C) 0

Explanation:
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Filed Under: Problems on Numbers
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Q:

There are three bottles of mixture of syrup and water of ratios 2:3, 3:4 and 7:5. 10 Litres of first and 21 Litres of second bottles are taken. How much quantity from third bottle is to be taken so that final mixture from three bottles will be of ratios 1:1.

A) 25 Litres B) 20 Litres
C) 35 Litres D) 30 Litres
 
Answer & Explanation Answer: D) 30 Litres

Explanation:
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Filed Under: Alligation or Mixture
Exam Prep: Bank Exams

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Q:

The milk and water in two vessels are in the ratio of 3 : 1 and 7 : 11 respectively. In what ratio should the liquid in both the vessels be mixed to obtaina new mixture containing half milk and half water?

A) 5 : 7 B) 4 : 9
C) 1 : 1 D) 4 : 7
 
Answer & Explanation Answer: B) 4 : 9

Explanation:
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Filed Under: Alligation or Mixture
Exam Prep: Bank Exams

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Q:

There is a three digit number. The digit at the tenth place is 3. If the place of all the digits are replaced with each other symmetrically about the tens position,then the new number obtained is 396 more than the original three digit number. The sum of the digits at unit & hundredth place is 14. Find out the original number?

A) 513 B) 539
C) 439 D) 613
 
Answer & Explanation Answer: B) 539

Explanation:

Ans.
Let digit = xyz
Given y = 3
According to the question = (100z+10y+x) - (100x+10y+z) = 396x99z-99x = 396
Z-x = 4
Also, Z+ x = 14
Solving (i) & (ii)
Z = 9 , x= 5
The original number is 539

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Q:

In the given figure, OX, OY and OZ are perpendicular bisectors of the three sides of the triangle. If QPR = 65 deg and PQR = 60 deg, then what is the value (in deg) of QOR + POR ?

A) 250 B) 180
C) 210 D) 125
 
Answer & Explanation Answer: A) 250

Explanation:
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Filed Under: Area
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Q:

The standard deviation of the set {10, 10, 10, 10, 10} is

A) 0 B) 1
C) 5 D) 10
 
Answer & Explanation Answer: A) 0

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Filed Under: Average
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Q:

Akash starts a business with Rs 85000 and Payal joins him with Rs 102000. If the profit at the end of a year is divided in the ratio 1 : 1, then after how many months did Payal join Akash?

A) 3 B) 2
C) 9 D) 8
 
Answer & Explanation Answer: B) 2

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

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