Oscar, Sam, Tom and Albert paid a total of $210 for a present. Albert paid
25 of what the rest paid. Oscar paid 25% of what the rest paid. Sam and Tom paid an equal amount of money. How much did Tom pay?
| Oscar |
Sam |
Tom |
Albert |
Total |
| 5x5 |
2x5 |
7x5 |
| 1x7 |
4x7 |
5x7 |
| |
1 |
1 |
|
|
| 7 u |
9 u |
9 u |
10 u |
35 u |
25%=
25100=
14 Oscar's share : Total share = 1 : 4
The total amount paid for the present is repeated. Make the total amount the same. LCM of 7 and 5 is 35.
Amount that Sam, Tom and Albert paid = 28 u
Amount that Sam and Tom paid
= 28 u - 10 u
= 18 u
The amount that Sam and Tom each paid is the same.
Amount that Sam and Tom each paid
= 18 u ÷ 2
= 9 u
Cost of the present = 35 u
35 u = 210
1 u = 210 ÷ 35 = 6
Amount that Tom paid
= 9 u
= 9 x 6
= $54
Answer(s): $54
