Ken and Vaidev had $1935 altogether. After Ken spent
15 of his money and Vaidev spent
67 of his money, Ken was left with thrice as much money as Vaidev. How much money did Vaidev have at first?
| |
Ken |
Vaidev |
Total |
| Before |
5x3 =
15 u |
7x4 =
28 u |
$1935 |
| Change |
- 1x3 =
- 3 u |
- 6x4 =
- 24 u |
|
| After |
4x3 =
12 u |
1x4 =
4 u |
|
Comparing Ken
and Vaidev in the end |
3x4 =
12 u |
1x4 =
4 u |
|
The amount that Ken had in the end is repeated. Make the amount that Ken had in the end the same. LCM of 4 and 3 is 12.
Total amount that Ken and Vaidev had at first
= 15 u + 28 u
= 43 u
43 u = 1935
1 u = 1935 ÷ 43 = 45
Amount that Vaidev had at first
= 28 u
= 28 x 45
= $1260
Answer(s): $1260
