Question

Mary has saved 17.50 in the past three weeks at this rate how much will she saved in the 15 weeks

Answer 1

17.50 (3 weeks)
17.50÷3=5.833
5.833×15=87.495 > £87.50

Answer 2

17.50= 3weeks
17.50/3=5.8333.................
5.8333.........*15=$87.50