SOLUTION: The price of the coffee has increased by 25%. What percentage of coffee consumption is to be decreased, so that there would be no increase in the expenditure for a household.
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Question 207419This question is from textbook New Syllabus Mathematics Book 4
: The price of the coffee has increased by 25%. What percentage of coffee consumption is to be decreased, so that there would be no increase in the expenditure for a household.
This question is from textbook New Syllabus Mathematics Book 4
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = the original price of coffee per pound
will be the new price of coffee per pound
Let = consumption in pounds originally
Let = the fraction of new consumption allowed
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The equation I want to be true is:
divide both sides by
If 4/5 of the previous consumption is allowed, then
the past consumption must be reduced by answer
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