Anna saved some of her school pocket money for 4 days. She saved $12 on the first day. For the remaining 3 days, she saved $0.80 more than the previous day.
- How much money did she save in 4 days?
- Anna then spent all her savings on 3 identical files. How much did each file cost?
(a)
Amount that Anna saved on the first day = $12
Amount that Anna saved on the second day = $12 + $0.80
Amount that Anna saved on the third day = $12 + $0.80 + $0.80
Amount that Anna saved on the fourth day = $12 + $0.80 + $0.80 + $0.80
Total amount the Anna saved in 4 days
= 4 x 12 + 6 x 0.80
= 48 + 4.80
= $52.80
(b)
Cost of each file
= 52.80 ÷ 3
= $17.60
Answer(s): (a) $52.80; (b) $17.60