Answer-The price of petrol rises by 60%. By what percent age should one minimise the use of petrol so that...

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Let the price of petrol be Rs. 100 If 60 is increased in price  100  60  Rs. 160 Thus, the reduced consumption for the price to be constant will be, 100100 - 100160  100  1 - 100 60  100  160 - 100160  100  60160  100  38  100  0.375  100  37.5

The price of petrol rises by 60%. By what percent age should one minimise the use of petrol so that the expenditure towards petrol is not affected?

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