The length of pipe C is
34 of the length of pipe F and the length of pipe F is
13 of the length of pipe D and
15 of the length of pipe E. What fraction of the total length of the 4 pipes is pipe D?
C |
F |
D |
E |
Total |
3x1 |
4x1 |
|
|
|
|
1x4 |
3x4 |
|
|
|
1x4 |
|
5x4 |
|
3 u |
4 u |
12 u |
20 u |
39 u |
The length of pipe F is repeated. Make the length of pipe F the same. LCM of 4 and 1 is 4.
Total length of all the 4 pipes
= 3 u + 4 u + 12 u + 20 u
= 39 u
Pipe DTotal Length =
1239 =
413Answer(s):
413