Dana saved some of her school pocket money for 5 days. She saved $5 on the first day. For the remaining 4 days, she saved $0.60 more than the previous day.
- How much money did she save in 5 days?
- Dana then spent all her savings on 5 identical files. How much did each file cost?
(a)
Amount that Dana saved on the first day = $5
Amount that Dana saved on the second day = $5 + $0.60
Amount that Dana saved on the third day = $5 + $0.60 + $0.60
Amount that Dana saved on the fourth day = $5 + $0.60 + $0.60 + $0.60
Amount that Dana saved on the fifth day = $5 + $0.60 + $0.60 + $0.60 + $0.60
Total amount the Dana saved in 5 days
= 5 x 5 + 10 x 0.60
= 25 + 6
= $31
(b)
Cost of each file
= 31 ÷ 5
= $6.20
Answer(s): (a) $31; (b) $6.20