A solution containing 10% sugar by weight is made sweeter by doubling the amount of sugar. The percent of sugar, by weight, in the new solution is-

Question: A solution containing 10% sugar by weight is made sweeter by doubling the amount of sugar. The percent of sugar, by weight, in the new solution is-

Solution:
let, solution is 100 unit
amount of sugar = 100 × 10%
= 100 × 10/100
= 10 unit

by doubling, amount of sweet = 20 unit
solutin = 100 + 10 = 110 unit

percent of sugar = 20 × 100%/110
= 18.18%