Question

A vendor buys lemons at Rs25 per dozen and sells at 5 for RS 12.his gain percent is

Answer 1

gain=selling price(s.p)-cost price(c.p)

cost price of 1 lemon=25/12
selling price 1 lemon=12/5

Gain=(12/5)-(25/12)

lcm on denominator
=(144-125)/60
=19/60
gain percentage=(gain/c.p)*100
=19/60*12/25*100
=76/5%
or 15.2%

Answer 2

It is given that a vendor buys lemon at rupees 25 per dozen.

So, 12 lemons cost ₹25

Therefore, 1 lemon would cost ₹25/12

Now,

SP of 5 lemons=₹12

So, SP of 1 lemon=₹12/5

So, here SP>CP, which means that there is a gain/profit.

Now, gain=SP-CP

=₹(12/5-25/12)

=₹19/60

Now, gain%=Gain/CP×100

=19/60/25/12×100

=76/5%

=15.2%