By what fraction selling price must be multiplied to get the cost price, if the loss is 20% = ?

1⁴/₅
2⁸/₅
3⁵/₄
4⁶/₅

Answer:- 1

Explanation:-

Solution:

\begin{aligned} % Loss = 20 % \\ 20 % = \frac{1}{5} \end{aligned}

$\eqalign{ & \% {\text{ Loss }} = 20\% \cr & 20\% = \frac{1}{5} \cr}$ It Cost price = 5 units
Loss = 1 units
Selling price = 5 - 1 = 4 units
Selling price = 4
we make it equal to Cost price that is (5)
So, we multiply Selling price by

\begin{aligned} = \frac{5}{4} \\ Selling price = 4 \times \frac{5}{4} \\ = 5 \end{aligned}

$\eqalign{ & = \frac{5}{4} \cr & {\text{Selling price}} = 4 \times \frac{5}{4} \cr & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, = 5{\text{ }} \cr}$

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It Cost price = 5 units
Loss = 1 units
Selling price = 5 - 1 = 4 units
Selling price = 4
we make it equal to Cost price that is (5)
So, we multiply Selling price by

\begin{aligned} = \frac{5}{4} \\ Selling price = 4 \times \frac{5}{4} \\ = 5 \end{aligned}

$\eqalign{ & = \frac{5}{4} \cr & {\text{Selling price}} = 4 \times \frac{5}{4} \cr & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, = 5{\text{ }} \cr}$ ", "dateCreated": "7/24/2019 10:09:12 AM", "author": { "@type": "Person", "name": "Nitin Sir" } }, "suggestedAnswer": { "@type": "Answer", "text": "

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