The ratio of Vaidev's money to Vincent's money is 7 : 15. If Vincent has $345, how much must he give to Vaidev so both will have the equal amount of money?
| |
Vaidev |
Vincent |
Total |
| Before |
7 u |
15 u |
22 u |
| Change |
+ 4 u |
- 4 u |
|
| After |
11 u |
11 u |
22 u |
Comparing Vaidev and
Vincent in the end |
1 |
1 |
|
Amount that Vincent has at first = 15 u
15 u = 345
1 u = 345 ÷ 15 = 23
Total amount that Vincent and Vaidev have
= 7 u + 15 u
= 22 u
Amount that each of them will have in the end
= 22 u ÷ 2
= 11 u
Amount that Vincent must give to Vaidev
= 11 u - 7 u
= 4 u
= 4 x 23
= $92
Answer(s): $92
