The price of petrol increased by 25% and so a person reduced his consumption by 25%. What percentage is the rise or fall in the expenditure incurred by him on petrol ?
Choose the correct choice from the following choices: A) 6.25% B) 6.50% C) 6.76% D) 6.80% E) 6.0%
Assume he consumes 100 liters of petrol,and petrol costs him Rs.100/-   His total expenditure = Rs.10000/-   Now price got increased by 25%. If a value got increased by 25% then the new value is 125% of the previous value. so 125%(100) = Rs.125   But he reduced his consumption by 25%, so his new consumption is 75%(100) = 75   His total expenditure = 125 x 75 = Rs.9375   Percentage change in the expenditures = 10000−9375/10000×100=6.25%   6.25%nswer 6.25%
<result>A</result>
The price of petrol increased by 25% and so a person reduced his consumption by 25%. What percentage is the rise or fall in the expenditure incurred by him on petrol ?