Olivia saved some of her school pocket money for 5 days. She saved $5 on the first day. For the remaining 4 days, she saved $0.20 more than the previous day.
- How much money did she save in 5 days?
- Olivia then spent all her savings on 6 identical staplers. How much did each stapler cost?
(a)
Amount that Olivia saved on the first day = $5
Amount that Olivia saved on the second day = $5 + $0.20
Amount that Olivia saved on the third day = $5 + $0.20 + $0.20
Amount that Olivia saved on the fourth day = $5 + $0.20 + $0.20 + $0.20
Amount that Olivia saved on the fifth day = $5 + $0.20 + $0.20 + $0.20 + $0.20
Total amount the Olivia saved in 5 days
= 5 x 5 + 10 x 0.20
= 25 + 2
= $27
(b)
Cost of each stapler
= 27 ÷ 6
= $4.50
Answer(s): (a) $27; (b) $4.50