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Ratio question ?

The price of oil is increased by 25%. If the expenditure is not allowed to increase, the ratio between the reduction in consumption and original consumption is?

2 Answers

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  • 3 weeks ago
    Favorite Answer

    If your consumption is C and the price is P per unit, then your expenditure is P×C.

    If the new price is now 1.25×P, then to keep your expenditure the same, your consumption must be reduced to C/1.25 = (4/5)C

    Ratio is 4/5.

  • ?
    Lv 7
    3 weeks ago

    The price of oil is increased by 25%. 

    If the expenditure is not allowed to increase, 

    the ratio between the reduction in consumption 

    and original consumption is 1 : 5.

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