Julian had thrice as much money as Vaidev. After Julian had spent $116, Vaidev had ten times as much money as Julian. How much more money than Vaidev had Julian at first?
| |
Julian |
Vaidev |
More |
Before
|
3x10 =
30 u |
1x10 =
10 u |
20 u |
| Change |
- $116 |
|
|
| After |
1 u |
10 u |
|
The amount that Vaidev had remains unchanged. Make the amount that Vaidev had the same. LCM of 1 and 10 is 10.
Amount that Mark had in the end = 1 u
30 u - 116 = 1 u
30 u - 1 u = 116
29 u = 116
1 u = 116 ÷ 29 = 4
Amount that Vaidev had more than Julian at first
= 30 u - 10 u
= 20 u
= 20 x 4
= $80
Answer(s): $80
