Vaidev and Riordan had $1720. Vaidev spent
58 of his money on a refrigerator. Riordan spent
16 of his money on a television. The refrigerator cost $220 more than the television. How much money had Vaidev left?
|
Vaidev |
Riordan |
Total |
Before |
8 u |
+ 352 |
6x5 = 30 u |
1720 |
Change |
- 5 u |
- 220 |
- 1x5 = - 5 u |
|
Comparing the refrigerator and the television |
220 more |
|
|
After |
3 u |
+ 132 |
5x5 = 25 u |
|
220 ÷ 5 = 44
3 x 44 = 132
8 x 44 = 352
Total amount that Vaidev and Riordan had at first
= 8 u + 352 + 30 u
= 38 u + 352
38 u + 352 = 1720
38 u = 1720 - 352
38 u = 1368
1 u = 1368 ÷ 38 = 36
Amount that Vaidev had left
= 3 u + 132
= 3 x 36 + 132
= 108 + 132
= $240
Answer(s): $240