Winnie saved some of her school pocket money for 5 days. She saved $9 on the first day. For the remaining 4 days, she saved $0.40 more than the previous day.
- How much money did she save in 5 days?
- Winnie then spent all her savings on 5 identical markers. How much did each marker cost?
(a)
Amount that Winnie saved on the first day = $9
Amount that Winnie saved on the second day = $9 + $0.40
Amount that Winnie saved on the third day = $9 + $0.40 + $0.40
Amount that Winnie saved on the fourth day = $9 + $0.40 + $0.40 + $0.40
Amount that Winnie saved on the fifth day = $9 + $0.40 + $0.40 + $0.40 + $0.40
Total amount the Winnie saved in 5 days
= 5 x 9 + 10 x 0.40
= 45 + 4
= $49
(b)
Cost of each marker
= 49 ÷ 5
= $9.80
Answer(s): (a) $49; (b) $9.80