Question

Bill has been saving $7 each week.Today he spent $77of the savings,and now he has $42 left. For how many weeks has he been saving

Answer 1

17. Bill has been saving for 17 weeks. $77 was from 11 weeks (7×11=77), and $42 is from 6 weeks (7×6=42). $77+$42=$119, 119÷7=17