Question

A certain number of articles are bought at Rs. $450$ per dozen and all of them are at a profit of $20\%$. Find the $S.P$ of:
(i) one article (ii) seven articles

Answer 1

CP $=Rs.450$

Profit $=20\%$

SP $=\frac{120}{100}\times 450$

$=Rs.540$

SP of 12 articles $=Rs.540$

(i) SP of 1 article $=\frac{540}{12}=Rs.45$

(ii) SP of 7 articles $=7\times 45=Rs.315$