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Question

A survey recorded the percentage of people who like tea over coffee as per the given grid model. The percentage of people who like tea over coffee is


A
15%
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B
20%
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C
30%
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D
40%
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Solution

The correct option is D 40%
Total number of cells present in the grid = 50
Number of shaded cells in the grid = 20
∴ Fraction of shaded cells = 2050

So, the fraction of people who like tea over coffee is = 2050

Simplifying 2050 , we get:

2050=20÷1050÷10=25

Now to convert a fraction into a percentage, we have to make the denominator 100.

Converting 25 to a fraction with denominator 100, we get:

25=2×205×20=40100

Hence, the percentage of people who like tea over coffee is 40% .


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