Question

By selling 130 cassettes, a man gains an amount equal to the selling price of 5 cassettes. Find the gain per cent.​

Answer 1

Step-by-step explanation:

let, the sp of 5 cassettes =1 rupee

then the sp of cassette =1/5rupee

now the sp of 130 cassettes= 1/5×130 =26 rupees

again ,sp =26 rupees

gain=1rupee

cp=sp _profit

=26_1

=25

gain%=1/25×100

gain%=4%