Question

a vendor buys oranges 25 rupees per dozen and sells them at the rate of 12 rupees for 5 oranges .find his loss or gain percent.

Answer 1

CP of 12 oranges =rs25
SP of 5 oranges= rs12
SP of 1 orange=12/5
12 oranges=12/5*12=144/5=28.8
Increased price=28.8-25=3.8
Increased%=3.8/25*100=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%