Instructions
Study pie-chart and table carefully and answer the question that follows:
Number of cars = 700
The second chart shows the ratio of petro and diesel cars.
Question 142
Number of petrol engine cars in state-3 is what per cent more than the number of diesel engine cars in state-1?
Solution
Number of petro engines in state 3 = 700*$$\frac{32}{100}*\frac{3}{8}$$ = 84
Number of diesel engine cars in state 1 = 700*$$\frac{14}{100}*\frac{3}{7} = 42$$
% increase =$$\frac{84-42}{42}*100 = 100$$%
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