Question

A sugar solution (3l) containing 40% sugar . if 1l of water is added then what is the % of sugar in the new solution

Answer 1

as 40% is sugar you can say it's. 3l*40÷100= 1.2l
now you added 1l of water total it became 4l and the % of sugar will be 1.2÷4*100=30%