A discount of 15 % on one article is same as a discount of 20 % on another article. costs of two art

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7.Profit and Loss

medium

A discount of $15 \%$ on one article is the same as a discount of $20 \%$ on another article. The costs of the two articles can be (in $Rs.$)

A

$40,20$

B

$60,40$

C

$80,60$

D

$50,30$

Solution

$\frac{15}{100} \times x=\frac{20}{100} \times y$

or $\frac{x}{y}=\frac{20}{100} \times \frac{100}{15}$

or $\quad \frac{x}{y}=\frac{4}{3}$

i.e. $x=80, y=60$

Standard 13

Quantitative Aptitude

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