Emily and Tommy had the same amount of savings at first. Then Emily spent
17 of her savings and Tommy spent
23 of his savings. If Emily spent $1936 less than Tommy, how much did each of them have at first?
| |
Emily |
Tommy |
| Before |
7x3 =
21 u |
3x7 =
21 u |
| Change |
1x3 =
- 3 u |
2x7 =
- 14 u |
| After |
18 u |
7 u |
The amount that Emily and Tommy had at first is the same. Make the amount that Emily and Tommy each had the same. LCM of 7 and 3 is 21.
Amount that Emily spent less than Tommy
= 14 u - 3 u
= 11 u
11 u = 1936
1 u = 1936 ÷ 11 = 176
Amount that each of them had at first
= 21 u
= 21 x 176
= $3696
Answer(s): $3696
