Vaidev and Howard had $689. Vaidev spent
25 of his money on a laptop. Howard spent
14 of his money on a refrigerator. The laptop cost $156 more than the refrigerator. How much money had Vaidev left?
| |
Vaidev |
Howard |
Total |
Before |
5 u |
+ 390 |
4x2 =
8 u |
689 |
Change |
- 2 u |
- 156 |
- 1x2 =
- 2 u |
|
Comparing the laptop
and the refrigerator |
156 more |
|
|
After |
3 u |
+ 234 |
3x2 =
6 u |
|
156 ÷ 2 = 78
3 x 78 = 234
5 x 78 = 390
Total amount that Vaidev and Howard had at first
= 5 u + 390 + 8 u
= 13 u + 390
13 u + 390 = 689
13 u = 689 - 390
13 u = 299
1 u = 299 ÷ 13 = 23
Amount that Vaidev had left
= 3 u + 234
= 3 x 23 + 234
= 69 + 234
= $303
Answer(s): $303
