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%
• B. 20%
• C. 30%
• D. 40%

Answer 1

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 = $\frac{20}{50}$

So, the fraction of people who like tea over coffee is = $\frac{20}{50}$

Simplifying $\frac{20}{50}$ , we get:

$\frac{20}{50}=\frac{20÷10}{50÷10}=\frac{2}{5}$

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

Converting $\frac{2}{5}$ to a fraction with denominator 100, we get:

$\frac{2}{5}=\frac{2\times 20}{5\times 20}=\frac{40}{100}$

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