Question

Selling price of 1kg tea 67.20 and sold at 12% profit

C. P. of $5$ kg tea in Rs.

Answer 1

Given, Profit % by selling 1 kg of tea $=\frac{S.P-C.P.}{C.P.}\times 100=12$ %
$=>\frac{67.20-C.P.}{C.P.}\times 100=12$
$=>67.20-C.P.=0.12C.P.$
$=>1.12C.P.=67.20$
$C.P.=Rs60$
So, C.P. of $5$ kg tea $=Rs5\times 60=Rs300$