Tina saved some of her school pocket money for 4 days. She saved $11 on the first day. For the remaining 3 days, she saved $0.40 more than the previous day.
- How much money did she save in 4 days?
- Tina then spent all her savings on 2 identical pens. How much did each pen cost?
(a)
Amount that Tina saved on the first day = $11
Amount that Tina saved on the second day = $11 + $0.40
Amount that Tina saved on the third day = $11 + $0.40 + $0.40
Amount that Tina saved on the fourth day = $11 + $0.40 + $0.40 + $0.40
Total amount the Tina saved in 4 days
= 4 x 11 + 6 x 0.40
= 44 + 2.40
= $46.40
(b)
Cost of each pen
= 46.40 ÷ 2
= $23.20
Answer(s): (a) $46.40; (b) $23.20