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1. Study the following bar-graph carefully and answer the questions given below:

What was the percentage increase in export from 2006 to 2007 ?

A. $16 \frac{2}{3}$ %

B. 19%

C. 20%

D. $33 \frac{1}{3}$

Solution:

Percentage increase in export from 2006 to 2007.

\begin{aligned} = (\frac{11.4 - 9.5}{9.5} \times 100) % \\ = (\frac{1.9}{9.5} \times 100) % \\ = (\frac{19}{95} \times 100) % \\ = 20 % \end{aligned}

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