45 Yoko's money was equal to
23 of Usha's money at first. After Yoko spent $2.40 and Usha spent $0.60, Yoko had
34 as much money as Usha.
- How much did Usha have at first? Express your answer in 2 decimal places.
- How much did Yoko have in the end? Express your answer in 2 decimal places.
| |
Make p the same
(3)x4 |
Yoko
(1) |
Usha
(2) |
Make p the same
(4)x3 |
| Before |
20 u |
5 u |
6 u |
18 u |
| Change |
- 9.6 |
- 2.4 |
- 0.6 |
- 1.8 |
| After |
12 p |
3 p |
4p |
12 p |
45 Yoko's money =
23 Usha's money
45 Yoko's money =
46 Usha's money
Yoko's money : Usha's money = 5 : 6
(3) = (4)
20 u - 9.6 = 18 u - 1.8
20 u - 18 u = 9.6 - 1.8
2 u = 7.8
1 u = 3.9
Amount Usha has at first
= 6 u
= 6 x 3.9
= 23.4 (a)
Amount Yoko has in the end
= 5 u - 2.4
= (5 x 3.9) - 2.4
= 17.1 (b)
Answers: (a) $23.40; (b) $17.10
