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Quantitative Aptitude

Percentages

The total num...

Question

The total number of students who opted for Mathematics in the year 2005 and 2008 together are approximately what per cent of the total number of students who opted for all three subjects in the same years?

A

36

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B

24

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C

44

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D

32

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E

46

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Solution

The correct option is D 32
Required percentage $= \frac{(15 + 30)}{(55 + 85)} \times 100$

$= \frac{45}{140} \times 100 = 32 %$

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