Ian had $79.90 less than Sarah. He spent
34 of his money on a pen which cost $5.70. Sarah spent
25 of her money on a blouse. How much had Sarah left?
| |
Ian |
Sarah |
| Before |
4 u |
5 p |
| Change |
- 3 u |
- 2 p |
| After |
1 u |
3 p |
Amount that Ian spent on the pen = 3 u
3 u = 5.70
1 u = 5.70 ÷ 3 = 1.90
Amount that Ian had at first
= 4 u
= 4 x 1.90
= $7.60
Amount that Sarah had at first
= 7.60 + 79.90
= $87.50
Fraction of money that Sarah had left
= 1 -
25 =
35 Amount that Sarah had at first = 5 p
5 p = 87.50
1 p = 87.50 ÷ 5 = 17.50
Amount that Sarah had left
= 3 p
= 3 x 17.50
= $52.50
Answer(s): $52.50
