Jack had 3 times as much money as Bill at first. Bill received some money and Jack spent some money. The amount Bill received was 4 times the amount Jack spent. After that, both of them had the same amount of money. They had a total of $ 332.80 in the end.

(a) What fraction of his money did Jack spend?

(b) How much money did Bill receive?

Jonathan and Kenneth shared an amount of money in the ratio of 3:4. After Jonathan spent 1/6 of his money and Kenneth spent $15 of his money, both Jonathan and Kenneth had the same amount of money left. How much money did they have at first?

Cayden and Jayden had a total of $784. After Cayden spent 1/6 of his money on food and Jayden spent $124 on toys, they had the same amount left. How much money did Cayden have at first?

Bart had 57 less madeleines than Jeff. Bart saved 3/5 of his madeleines while Jeff spent 2/3 of the madeleines. Given that the amount Bart spent was 1/4 of Jeff’s savings, how much did Jeff spend?