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1. The graph shows the production of food grains of a country in different. Study the graph and answer the questions.

The percentage increase in production from 1984 to 1985 was.

A. 150%

B. 120%

C. 95%

D. 100%

Solution:

\begin{aligned} % increase \\ = \frac{30 - 15}{15} \times 100 \\ = \frac{15}{15} \times 100 \\ = 100 % \end{aligned}

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