Vaidev and Xavier had $1419. Vaidev spent
49 of his money on a refrigerator. Xavier spent
15 of his money on a washing machine. The refrigerator cost $128 more than the washing machine. How much money had Vaidev left?
| |
Vaidev |
Xavier |
Total |
Before |
9 u |
+ 288 |
5x4 =
20 u |
1419 |
Change |
- 4 u |
- 128 |
- 1x4 =
- 4 u |
|
Comparing the refrigerator
and the washing machine |
128 more |
|
|
After |
5 u |
+ 160 |
4x4 =
16 u |
|
128 ÷ 4 = 32
5 x 32 = 160
9 x 32 = 288
Total amount that Vaidev and Xavier had at first
= 9 u + 288 + 20 u
= 29 u + 288
29 u + 288 = 1419
29 u = 1419 - 288
29 u = 1131
1 u = 1131 ÷ 29 = 39
Amount that Vaidev had left
= 5 u + 160
= 5 x 39 + 160
= 195 + 160
= $355
Answer(s): $355
