Question

Study the graph carefully and answer the question given below it.

The increase in import in $1978$ was what percent of the import in 1$977$?

• A. $25\%$
• B. $5\%$
• C. $125\%$
• D. $80\%$

Answer 1

The correct option is A $25\%$

Year	Wheat Import (in Thousand Tonnes)
1971	3465
1972	1811
1973	2413
1974	4203
1975	7016
1976	5832
1977	2000
1978	2500

Clearly as show in the graph,

Wheat Import in 1978 $=$ 2500 thousand tonnes $=x$

Wheat Import in 1977 $=$ 2000 thousand tonnes $=y$

$x-y=$ 500

$\Rightarrow$ Increase in Import $=$ 500 thousand tonnes.

$\%$ increase $=\frac{500}{2000}\times \left(100\right)$

$\Rightarrow \%$increase $=25\%$

$\therefore Answer=25\%$