HOTS (Higher Order Thinking Skills)
The price of petrol rises by 20%. By what rate percent should a motorist reduce his consumption so that
his expenditure on petrol does not increase?
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Answer:
16.66%
Step-by-step explanation:
assume that 1l of petrol costs 100rs so if his Price increase by 20% then the cost of 1l will be 120rs
therefore,if 120-16.66%=100 so he should reduce the cost of petrol to 16.66% which will be 880 liters of petrol in 100.008rs
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