Question

Directions : In the following multiple graphs production of wheat (in quintals) by three states – Bihar, Madhya Pradesh and Punjab – have been given. Study the following graphs carefully to answer the questions.

If the production of wheat in Bihar in the years 2001, 2002, 2003 and 2004 increase by 20%, 25%, 28% and 35% respectively, what will be the percentage increase in the average production of the state for the given years?

• A. 35.7%
• B. 15.5%
• C. 25%
• D. 42.5%
• E. None of these

Answer 1

The correct option is B

15.5%

increase in wheat production in Bihar:

$Year2001\Rightarrow \frac{2800\times 120}{100}=3360quintalsYear2002\Rightarrow \frac{2700\times 125}{100}=3375quintalsYear2003\Rightarrow \frac{2800\times 128}{100}=3584quintalsYear2004\Rightarrow \frac{3800\times 135}{100}=5130quintals$

Total new production = 3360 + 3375 + 3584 + 5130 + 2100 + 3800 + 3600 = 24949 quintals.
Total earlier production = 2800 + 2700 + 2800 + 3800 + 2100 + 3800 + 3600 = 21600 quintals

Increase = 24949 – 21600 = 3349 quintals

$Averageincrease=\frac{3349}{7}quintalsRequiredpercentageincrease\frac{\frac{3349}{7}}{\frac{21600}{7}}\times 100=15.5\%$