An article was sold for $R s 210$ with a profit of $5 %$ , what was its cost price ?

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Solution

S.P. = $R s 210$
Profit % = $5 %$
Let the C.P. be $x R s$
$P r o f i t = \frac{P r o f i t % \times C . P .}{100} = \frac{5 \times x}{100} = \frac{x}{20}$
Also,
$S . P . = P r o f i t + C . P . 210 = \frac{x}{20} + x 210 = \frac{21 x}{20} x = \frac{210 \times 20}{21} x = 200$
Therefore, cost price is $R s 200$ .

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An article was sold for Rs210 with a profit of 5%, what was its cost price ?

S.P. = Rs210Profit % = 5%Let the C.P. be xRs Profit=Profit%×C.P.100=5×x100=x20Also, S.P.=Profit+C.P.210=x20+x210=21x20x=210×2021x=200Therefore, cost price is Rs200.

An article was sold for $R s 210$ with a profit of $5 %$ , what was its cost price ?