Mrs Choo gave Gabby and Eva some money each on Thursday. On Friday, Gabby gave
14 of the amount she had to Eva. On Saturday, Eva gave
13 of the amount she had to Gabby. In the end, Gabby had $14 and Eva had $4. How much did Eva had more than Gabby at first?
| |
Gabby |
Eva |
Total |
| Before 1 |
4 u |
? |
$18 |
| Change 1 |
- 1 u |
+ 1 u |
|
| After 1 |
3 u |
3 p |
$18 |
| Before 2 |
$14 - 1 p |
3 p |
$18 |
| Change 2 |
+ 1 p |
- 1 p |
|
After 2 |
$14 |
2 p
($4) |
$18 |
Amount that Eva had in the end = 2 p
2 p = 4
1 p = 4 ÷ 2 = 2
Working backwards.
Amount that Gabby had after giving to Eva on Friday
= 14 - 1 p
= 14 - 2
= $12
3 u = 12
1 u = 12 ÷ 3 = 4
Amount that Gabby had at first
= 4 u
= 4 x 4
= $16
Total amount that Gabby and Eva had
= 14 + 4
= $18
Amount that Eva had at first
= 18 - 16
= $2
Amount that Gabby had more than Eva
= 16 - 2
= $14
Answer(s): $14
