Mrs Chiam gave Jade and Kylie some money each on Monday. On Tuesday, Jade gave
14 of the amount she had to Kylie. On Wednesday, Kylie gave
15 of the amount she had to Jade. In the end, Jade had $38 and Kylie had $20. How much did Kylie had more than Jade at first?
| |
Jade |
Kylie |
Total |
| Before 1 |
4 u |
? |
$58 |
| Change 1 |
- 1 u |
+ 1 u |
|
| After 1 |
3 u |
5 p |
$58 |
| Before 2 |
$38 - 1 p |
5 p |
$58 |
| Change 2 |
+ 1 p |
- 1 p |
|
After 2 |
$38 |
4 p
($20) |
$58 |
Amount that Kylie had in the end = 4 p
4 p = 20
1 p = 20 ÷ 4 = 5
Working backwards.
Amount that Jade had after giving to Kylie on Tuesday
= 38 - 1 p
= 38 - 5
= $33
3 u = 33
1 u = 33 ÷ 3 = 11
Amount that Jade had at first
= 4 u
= 4 x 11
= $44
Total amount that Jade and Kylie had
= 38 + 20
= $58
Amount that Kylie had at first
= 58 - 44
= $14
Amount that Jade had more than Kylie
= 44 - 14
= $30
Answer(s): $30
