Question

the price of petrol Rose by 10% by how much percent must the consumption of petrol be reduced so that the expenditure on petrol remains the same

Answer 1

hey buddy here is your answer

let petrol price =100 RS

increment in price =10*100/100= 10 RS

now price =110

difference per litre is =110-100=10

so consumption should be reduce = 10/110*100= 9.09%

hope it helped

mark as brainliest if you got your answer

Answer 2

Answer:

So, the motorists have to reduce the consumption of petrol by 9.09 %, so that the expenditure on it remains unchanged