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ICSE Class 8 Answered

The cost of petrol is increased by 17%.By what percent should the consumption be reduced so that the expenditure is constant?
Asked by mkp400 | 16 Dec, 2017, 09:57: AM
answered-by-expert Expert Answer
begin mathsize 16px style Decrease space in space consumption space equals space fraction numerator percent sign space price space increase over denominator left parenthesis 100 plus percent sign space price space increase right parenthesis end fraction cross times 100 If space the space cost space of space petrol space increases space by space 17 percent sign space Decrease space in space consumption equals fraction numerator 17 over denominator 100 plus 17 end fraction cross times 100 equals 14 53 over 100 percent sign end style
Answered by Sneha shidid | 16 Dec, 2017, 12:19: PM

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