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1. Study the following bar graph and answer the questions. The Bar graph gives the annual rates of inflation in percentage for 1975 and 1987.

From 1975 to 1987, inflation rate increased in the third world countries approximately by:

A. 10%

B. 20%

C. 30%

D. 36%

Solution:

\begin{aligned} Required increment \\ = \frac{36.2 - 26.6}{26.6} \times 100 \\ = \frac{9.6}{26.6} \times 100 \\ = 36.09 % \approx 36 % \end{aligned}

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