Irene saved some of her school pocket money for 5 days. She saved $4 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?
- Irene then spent all her savings on 5 identical staplers. How much did each stapler cost?
(a)
Amount that Irene saved on the first day = $4
Amount that Irene saved on the second day = $4 + $0.60
Amount that Irene saved on the third day = $4 + $0.60 + $0.60
Amount that Irene saved on the fourth day = $4 + $0.60 + $0.60 + $0.60
Amount that Irene saved on the fifth day = $4 + $0.60 + $0.60 + $0.60 + $0.60
Total amount the Irene saved in 5 days
= 5 x 4 + 10 x 0.60
= 20 + 6
= $26
(b)
Cost of each stapler
= 26 ÷ 5
= $5.20
Answer(s): (a) $26; (b) $5.20