Zoe saved some of her school pocket money for 5 days. She saved $8 on the first day. For the remaining 4 days, she saved $0.90 more than the previous day.
- How much money did she save in 5 days?
- Zoe then spent all her savings on 5 identical markers. How much did each marker cost?
(a)
Amount that Zoe saved on the first day = $8
Amount that Zoe saved on the second day = $8 + $0.90
Amount that Zoe saved on the third day = $8 + $0.90 + $0.90
Amount that Zoe saved on the fourth day = $8 + $0.90 + $0.90 + $0.90
Amount that Zoe saved on the fifth day = $8 + $0.90 + $0.90 + $0.90 + $0.90
Total amount the Zoe saved in 5 days
= 5 x 8 + 10 x 0.90
= 40 + 9
= $49
(b)
Cost of each marker
= 49 ÷ 5
= $9.80
Answer(s): (a) $49; (b) $9.80