Avendor buys milk at a certain price, adds water and sells the adulterated milk at the same rate as he bought it for. he makes a 30% profit. what is the percentage of water that he adds to milk?

options:
a) 30%
b) 15%
c) 20%
d) 60%

55? i think maybe

step-by-step explanation:

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.