Question

A dealer bought $20$ toys at the rate of $120$ per toy. He sold $8$ of them at the rate of $Rs$ $130$ per toy and the remaining at at the rate $Rs.$ $140$ per toy . What was his profit percent ?

Answer 1

Number of toys $=20.$

Cost of each toy $=Rs120$

Total cost of toys $=Rs.2400=costprice$

Now, He cost $8$ toys for $Rs130$

selling price of 8 toys $=8\times Rs130$$=Rs1040.$

He said $12$ for $Rs140.$

selling price of 12 toys $=12\times Rs140$ $=Rs1680$

Total selling price of $20toys=Rs1040+1680=Rs2720$

Profit % = $\frac{sellingprice-costprice}{costprice}\times 100$

$=\frac{2720-2400}{2400}\times 100=\frac{320}{2400}\times 100$ = $3\%$ $=13.33\%$