Cole, Ethan, Wesley and Bryan bought a washing machine for their aunt. Cole paid
13 of what the rest paid. Ethan paid
15 of what the rest paid. Wesley paid
16 of what the rest paid. Bryan paid $32 more than Cole. How much did the washing machine cost?
| Cole |
Ethan |
Wesley |
Bryan |
Total |
| 1x21 |
|
|
|
4x21 |
| |
1x14 |
|
|
6x14 |
| |
|
1x12 |
|
7x12 |
| 21 u |
14 u |
12 u |
37 u |
84 u |
The cost of the washing machine is repeated. Make the cost of the washing machine the same. LCM of 4, 6 and 7 is 84.
Amount that Bryan had
= 84 u - (21 u + 14 u + 12 u)
= 37 u
Amount that Bryan paid more than Cole
= 37 u - 21 u
= 16 u
16 u = 32
1 u = 32 ÷ 16 = 2
Cost of the washing machine
= 84 u
= 84 x 2
= $168
Answer(s): $168
