The length of copper pipe B is
34 of the length of copper pipe E and the length of copper pipe E is
15 of the length of copper pipe C and
12 of the length of copper pipe D. What fraction of the total length of the 4 copper pipes is copper pipe C?
B |
E |
C |
D |
Total |
3x1 |
4x1 |
|
|
|
|
1x4 |
5x4 |
|
|
|
1x4 |
|
2x4 |
|
3 u |
4 u |
20 u |
8 u |
35 u |
The length of copper pipe E is repeated. Make the length of copper pipe E the same. LCM of 4 and 1 is 4.
Total length of all the 4 copper pipes
= 3 u + 4 u + 20 u + 8 u
= 35 u
Copper Pipe CTotal Length =
2035 =
47Answer(s):
47