the price of cooking oil has increased by 25 %. the percentage of reduction that a farming should effect in the use of cooking oil so as not to increase the expenditure on this account is--------?

30%

15%

20%

25%

the price of cooking oil has increased by 25 %. the percentage of reduction that a farming should effect in the use of cooking oil so as not to increase the expenditure on this account is--------?

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