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1. Study the graph and answer the questions.

What was the approximate percent increase in sales of cool-up in 1990 over its sales in 1989?

A. 100%

B. 50%

C. 216%

D. 150%

Solution:

Sales of cool up in 1989 = 6 lakh bottles
Sales of cool up in 1990 = 19 lakh bottles
∴ Required percent

\begin{aligned} = \frac{19 - 6}{6} \times 100 \\ = \frac{13}{6} \times 100 \\ = 216 % \end{aligned}

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