The ratio of Vaidev's to Simon's money is 6 : 7. The ratio of Simon's to Archie's money is 3 : 5. If Vaidev has $360, how much more does Archie have than Simon?
Vaidev |
Simon |
Archie |
6x3 |
7x3 |
|
|
3x7 |
5x7 |
18 u |
21 u |
35 u |
The amount that Simon has is the repeated identity.
Use LCM to make it the same.
LCM of 7 and 3 = 21
Amount that Vaidev has = 18 u
18 u = 360
1 u = 360 ÷ 18 = 20
Amount that Archie has more than Simon
= 35 u - 21 u
= 14 u
= 14 x 20
= $280
Answer(s): $280