Sabrina saved some of her school pocket money for 5 days. She saved $6 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?
- Sabrina then spent all her savings on 5 identical pencils. How much did each pencil cost?
(a)
Amount that Sabrina saved on the first day = $6
Amount that Sabrina saved on the second day = $6 + $0.60
Amount that Sabrina saved on the third day = $6 + $0.60 + $0.60
Amount that Sabrina saved on the fourth day = $6 + $0.60 + $0.60 + $0.60
Amount that Sabrina saved on the fifth day = $6 + $0.60 + $0.60 + $0.60 + $0.60
Total amount the Sabrina saved in 5 days
= 5 x 6 + 10 x 0.60
= 30 + 6
= $36
(b)
Cost of each pencil
= 36 ÷ 5
= $7.20
Answer(s): (a) $36; (b) $7.20