Yen saved some of her school pocket money for 4 days. She saved $8 on the first day. For the remaining 3 days, she saved $0.30 more than the previous day.
- How much money did she save in 4 days?
- Yen then spent all her savings on 2 identical pens. How much did each pen cost?
(a)
Amount that Yen saved on the first day = $8
Amount that Yen saved on the second day = $8 + $0.30
Amount that Yen saved on the third day = $8 + $0.30 + $0.30
Amount that Yen saved on the fourth day = $8 + $0.30 + $0.30 + $0.30
Total amount the Yen saved in 4 days
= 4 x 8 + 6 x 0.30
= 32 + 1.80
= $33.80
(b)
Cost of each pen
= 33.80 ÷ 2
= $16.90
Answer(s): (a) $33.80; (b) $16.90