Loading drawing…
Loading drawing…
"Mary started saving 12 days after Helen had started saving."
helen 12th day → 12 x 0.8 = $9.60
total difference → $9.60 + $3 = $12.60
1 day difference → 1.10 - 0.80 = $0.30
total days → 12.60 ÷ 0.30 = 42
Question 12
Video explanation ↓Helen saves $0.80 every day. Mary saves $1.10 every day. Mary started saving 12 days after Helen had started saving. How many days would it take for Mary to save $3 more than Helen? (3 marks)
Answer: 42 days