Mrs Yong gave Jade and Ivory some money each on Tuesday. On Wednesday, Jade gave
13 of the amount she had to Ivory. On Thursday, Ivory gave
15 of the amount she had to Jade. In the end, Jade had $25 and Ivory had $28. How much did Ivory had more than Jade at first?
| |
Jade |
Ivory |
Total |
| Before 1 |
3 u |
? |
$53 |
| Change 1 |
- 1 u |
+ 1 u |
|
| After 1 |
2 u |
5 p |
$53 |
| Before 2 |
$25 - 1 p |
5 p |
$53 |
| Change 2 |
+ 1 p |
- 1 p |
|
After 2 |
$25 |
4 p
($28) |
$53 |
Amount that Ivory had in the end = 4 p
4 p = 28
1 p = 28 ÷ 4 = 7
Working backwards.
Amount that Jade had after giving to Ivory on Wednesday
= 25 - 1 p
= 25 - 7
= $18
2 u = 18
1 u = 18 ÷ 2 = 9
Amount that Jade had at first
= 3 u
= 3 x 9
= $27
Total amount that Jade and Ivory had
= 25 + 28
= $53
Amount that Ivory had at first
= 53 - 27
= $26
Amount that Jade had more than Ivory
= 27 - 26
= $1
Answer(s): $1
