Oscar, Rael, Oliver and Ivan paid a total of $168 for a present. Ivan paid
12 of what the rest paid. Oscar paid 40% of what the rest paid. Rael and Oliver paid an equal amount of money. How much did Oliver pay?
| Oscar |
Rael |
Oliver |
Ivan |
Total |
| 2x7 |
1x7 |
3x7 |
| 2x3 |
5x3 |
7x3 |
| |
1 |
1 |
|
|
| 6 u |
4 u |
4 u |
7 u |
21 u |
40%=
40100=
25 Oscar's share : Total share = 2 : 5
The total amount paid for the present is repeated. Make the total amount the same. LCM of 3 and 7 is 21.
Amount that Rael, Oliver and Ivan paid = 15 u
Amount that Rael and Oliver paid
= 15 u - 7 u
= 8 u
The amount that Rael and Oliver each paid is the same.
Amount that Rael and Oliver each paid
= 8 u ÷ 2
= 4 u
Cost of the present = 21 u
21 u = 168
1 u = 168 ÷ 21 = 8
Amount that Oliver paid
= 4 u
= 4 x 8
= $32
Answer(s): $32
