Emma saved some of her school pocket money for 3 days. She saved $5 on the first day. For the remaining 2 days, she saved $0.40 more than the previous day.
- How much money did she save in 3 days?
- Emma then spent all her savings on 3 identical pencils. How much did each pencil cost?
(a)
Amount that Emma saved on the first day = $5
Amount that Emma saved on the second day = $5 + $0.40
Amount that Emma saved on the third day = $5 + $0.40 + $0.40
Total amount the Emma saved in 3 days
= 3 x 5 + 3 x 0.40
= 15 + 1.20
= $16.20
(b)
Cost of each pencil
= 16.20 ÷ 3
= $5.40
Answer(s): (a) $16.20; (b) $5.40