Question

Apples are sold at Rs
$18 \times \frac{2}{5} \: per \: kg$
.what is the cost of
$3 \times \frac{3}{4} kg \: of \: apples$

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Answer 1

$rs \: 18 \times \frac{2}{5} =rs \: \frac{36}{5} = rs \: 7.2 \\ now \: the \: cost \: of \: 1kg \: of \: apples\: is \: rs \: 7.2 \: . \\ \\ question \: is \: what \: is \: the \: cost \: of \: 3 \times \frac{3}{4}kg. \\ now \: 3 \times \frac{3}{4}kg = \frac{9}{4} kg = 2.25 \\ now \: 7.2 \div 2.25 rs= 4.052rs$

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