Three family members shared the cost of buying a flat equally. Adam used 1/2 of his savings, Bill used 6/7 of his savings and Carl used 3/4 of his savings. Bill and Carl had $44 820 left after paying for the flat.

(a) How much did the flat cost?

(b) How much does each of them have at first?

Kyle started saving money weekly after he got a job. He saved  for his first  weeks. If he decided to increase his weekly savings by % more than his average weekly savings during the first  weeks, how much will he have saved at the end of the year?

The ratio of Jeremy's savings to Keith's saving was 5:7. After Jeremy had given $224 to Keith, the amount of savings Jeremy had left was  of Keith's money. Find the total amount of savings of the two boys.

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?