Question

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

Answer 1

Answer:

Let the cost price of each cassette be Rs.10

Cost price of 130 cassette =130×10=1300

By selling, he gained SP of 5 cassettes

therefore,

Cost price of 130 cassettes = Selling price of 125 cassettes

SP of 5 cassettes =

125

1300

×5=52

He gained Rs.52 on selling 130 cassettes

So,

Gain %=

Total CP

Gain

×100

=

1300

52

×100

=4

Therefore gain percent is 4%.

Answer 2

Step-by-step explanation:

Let the cost price of each cassette be Rs.10

Cost price of 130 cassette =130×10=1300

By selling, he gained SP of 5 cassettes

therefore,

Cost price of 130 cassettes = Selling price of 125 cassettes

SP of 5 cassettes =

125

1300

×5=52

He gained Rs.52 on selling 130 cassettes

So,

Gain %=

Total CP

Gain

×100

=

1300

52

×100

=4

Therefore gain percent is 4%.