Sam, Flynn, Billy and Riordan paid a total of $63 for a gift. Riordan paid
45 of what the rest paid. Sam paid 50% of what the rest paid. Flynn and Billy paid an equal amount of money. How much did Billy pay?
| Sam |
Flynn |
Billy |
Riordan |
Total |
| 5x1 |
4x1 |
9x1 |
| 1x3 |
2x3 |
3x3 |
| |
1 |
1 |
|
|
| 3 u |
1 u |
1 u |
4 u |
9 u |
50%=
50100=
12 Sam's share : Total share = 1 : 2
The total amount paid for the gift is repeated. Make the total amount the same. LCM of 9 and 3 is 9.
Amount that Flynn, Billy and Riordan paid = 6 u
Amount that Flynn and Billy paid
= 6 u - 4 u
= 2 u
The amount that Flynn and Billy each paid is the same.
Amount that Flynn and Billy each paid
= 2 u ÷ 2
= 1 u
Cost of the gift = 9 u
9 u = 63
1 u = 63 ÷ 9 = 7
Amount that Billy paid
= 1 u
= 1 x 7
= $7
Answer(s): $7
