Question

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

Answer 1

Let the selling price of 1 cassette be Re. 1.
Therefore, SP of 130 cassette =Rs.130
According to the question –
Gain =SP of 5 cassettes =Rs.5
As we know the CP =SP-Gain. Therefore, CP of 130 cassette =Rs.130-Rs.5 =Rs.125
And hence, gain% =(Gain×100/CP)%
=(5×100/125)% =4%
[Answer]

Answer 2

Step-by-step explanation:

let the SP of each cassette be x.

SP of 130cassettes =130x.

profit =5x.

then,

CP=SP-gain

CP=130x-5x

CP=125x

now,

gain%=5x/125x*100

=4%