Daniel, Simon, Jack and Cody bought a refrigerator for their aunt. Daniel paid
13 of what the rest paid. Simon paid
14 of what the rest paid. Jack paid
15 of what the rest paid. Cody paid $40 more than Daniel. How much did the refrigerator cost?
Daniel |
Simon |
Jack |
Cody |
Total |
1x15 |
|
|
|
4x15 |
|
1x12 |
|
|
5x12 |
|
|
1x10 |
|
6x10 |
15 u |
12 u |
10 u |
23 u |
60 u |
The cost of the refrigerator is repeated. Make the cost of the refrigerator the same. LCM of 4, 5 and 6 is 60.
Amount that Cody had
= 60 u - (15 u + 12 u + 10 u)
= 23 u
Amount that Cody paid more than Daniel
= 23 u - 15 u
= 8 u
8 u = 40
1 u = 40 ÷ 8 = 5
Cost of the refrigerator
= 60 u
= 60 x 5
= $300
Answer(s): $300