35 Jean's money was equal to
25 of Usha's money at first. After Jean spent $2.20 and Usha spent $1.10, Jean had
25 as much money as Usha.
- How much did Usha have at first? Express your answer in 2 decimal places.
- How much did Jean have in the end? Express your answer in 2 decimal places.
| |
Make p the same
(3)x5 |
Jean
(1) |
Usha
(2) |
Make p the same
(4)x2 |
| Before |
50 u |
10 u |
15 u |
30 u |
| Change |
- 11 |
- 2.2 |
- 1.1 |
- 2.2 |
| After |
10 p |
2 p |
5p |
10 p |
35 Jean's money =
25 Usha's money
610 Jean's money =
615 Usha's money
Jean's money : Usha's money = 10 : 15
(3) = (4)
50 u - 11 = 30 u - 2.2
50 u - 30 u = 11 - 2.2
20 u = 8.8
1 u = 0.44
Amount Usha has at first
= 15 u
= 15 x 0.44
= 6.6 (a)
Amount Jean has in the end
= 10 u - 2.2
= (10 x 0.44) - 2.2
= 2.2 (b)
Answers: (a) $6.60; (b) $2.20
