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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

The price of an article is cut by 36%, to restore to its original value, the new price must be increased by

A) 56.25 percent B) 36 percent
C) 26.47 percent D) 45 percent
 
Answer & Explanation Answer: A) 56.25 percent

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

In each question two equations numbered I and II are given,you haveto solve both the equation and choose the correctanswer.

I. x2+ 30x + 81 = 0

II.y2-9y -162 = 0

A) x > y B) x>y
C) x < y D) x
 
Answer & Explanation Answer:

Explanation:

x^2+ 30x + 81 = 0
x^2+ 27x + 3x + 81 = 0
x = -3, -27
y^2-9y -162 = 0
y^2-18y + 9y -162 = 0
y = -9, 18
Hence, no relationship can be established between x and y

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Filed Under: Simplification
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Q:

If secA + tanA = x, then the value of x is

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

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Q:

What is the unit digit of 15+25+35+...+205 ?

A) 0 B) 5
C) 2 D) 4
 
Answer & Explanation Answer: A) 0

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Q:

The ten's digit of a 2-digit number is greater than the units digit by 7. If we subtract 63 from the number, the new number obtained is a number formed by interchange of the digits. Find the number.

A) 81 B) 18
C) 62 D) 26
 
Answer & Explanation Answer: A) 81

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Filed Under: Problems on Numbers
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Q:

Find the unit place digit in 71 x 72 x 73 x 74 x 76 x 77 x 78 x 79.

A) 2 B) 0
C) 4 D) 6
 
Answer & Explanation Answer: D) 6

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Filed Under: Problems on Numbers
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Q:

Deepanshu lent Rs. 8400 to Jaipal for 15 years and Rs. 5100 to Kareem for 14 years on simple interest at the same rate of interest and received Rs. 17766 in all from both of them as interest. The rate of interest per annum is

A) 9.5 percent B) 10 percent
C) 10.5 percent D) 9 percent
 
Answer & Explanation Answer: D) 9 percent

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Filed Under: Simple Interest
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Q:

A moving train passes a platform 50m long in 14 seconds and a lamp post in 10 seconds. The speed of the train (in km/h) is :

A) 24 B) 36
C) 40 D) 45
 
Answer & Explanation Answer: D) 45

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Filed Under: Problems on Trains
Exam Prep: Bank Exams

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