Question

The CP of $21$ articles is equal to SP of $18$ articles. Find the gain or loss percent.

• A. $16\%$
• B. $8\%$
• C. $10\%$
• D. $12\%$

Answer 1

The correct option is A $16\%$

Given that: $21C.P=18S.P$

$\Rightarrow \frac{S.P}{C.P}=\frac{21}{18}$

%Profit$=\left(\frac{S.P-C.P}{C.P}\right)\times 100$

$=(\frac{S.P}{C.P}-1)\times 100=(\frac{21}{18}-1)\times 100$

$=\frac{3}{18}\times 100=16.66$