Mathtips

black_arabian_stallion_by_vikarus-d33e5pn

Solution for yesterday’s problem

Let the cost price be $100

Selling price at 33% gain is $133

Marked price after allowing 5% discount = (100/95)*133 = $140

Therefore, 40% above the cost price is the marked price.

Fastrac method

x-5-(5x/100) = 33

x = 40

Today’s problem

A family wanted to reduce the expenditure on milk by 19%. But the price of milk increased by 8%. In order to achieve the desired result, by what percentage the family would reduce the consumption?

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