Same pattern as Emma and Lily's savings — 2 : 1 becomes 4 : 1. New numbers, new story. Try each one on paper, then check the working below — or watch it drawn out, the same way the problem above is.
Question 1
The ratio of Aisha's savings to Mei's savings was 3:1. After Aisha saved $40 more and Mei spent $10, the new ratio became 5:1. How much money did Aisha have at first?
Work it out on paper, then check below. ▶ See the working
Question 2
The ratio of Marcus's marble collection to Ben's marble collection was 3:2. After Marcus won 24 more marbles and Ben lost 9 marbles in a game, the new ratio became 3:1. How many marbles did Marcus have at first?
Work it out on paper, then check below. ▶ See the working