Question

a milk seller buys milk at the rate of 3rs per liter. he mixes water 1/4 of it and sells the mixture at the cost price. the percentage gain is​

Answer 1

Answer:

Step-by-step explanation:

CP per litre of milk=Rs 3

Let x be the amount of milk.

Water mixed=(1/4) of x=x/4

Now the mixture becomes {x+(x/4)}=5x/4

Sp= cp is given.

Now,by question,

His gain=(5x/4)-x=x/4

Now gain%={(x/4)÷x}*100%

=x/4*1/x*100%

=(100/4)%

=25%