£10 is divided between Alex, Peter &
Angad so that Alex gets twice as
much as Peter, and Peter gets three
times as much as Angad. How
much does Peter get?

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of