Question

Joyce has $60 more than Carol. If Carol gives Joyce $20, the amount of money Joyce has will be thrice that of Carol's. How much money has each of them at first?

Answer 1

joyce = carol + 60
the difference is initially 60, but then joyce's increases by 20 (diff becomes 80) and carols decreases by 20 (diff becomes 100) then that final difference of 100 would be 2x carol, and 3x carol is joyce.
joyce has 150 and carol has 50
initially they had 130 and 70
i hope that makes sense