Question

a man makes a profit pf 5% by selling an article at Rs315.Find the cp

Answer 1

5% of 315 = cp

5/100 × 315 = cp

15.75 = cp

Answer 2

Given :

Profit % = 5

Selling Price , SP = RS. 315

Cost Price , CP = ?

$\bold{Formula:\;\bf{\red{\frac{SP-CP}{CP} }*100=Profit \;\%}}$

Now sub. values in Formula , we get ,

$\implies \frac{315-CP}{CP}*100=5\\\\ \implies \frac{315}{CP}-1=\frac{1}{20} \\\\\implies \frac{315}{CP}=\frac{21}{20}\\\\ \implies CP=\frac{20*315}{21}\\\\ \implies \bold{\bf{\blue{Cost\;Price\;,CP=RS.\;225}}}$