The length of copper pipe A is
45 of the length of copper pipe D and the length of copper pipe D is
34 of the length of copper pipe B and
35 of the length of copper pipe C. What fraction of the total length of the 4 copper pipes is copper pipe B?
A |
D |
B |
C |
Total |
4x3 |
5x3 |
|
|
|
|
3x5 |
4x5 |
|
|
|
3x5 |
|
5x5 |
|
12 u |
15 u |
20 u |
25 u |
72 u |
The length of copper pipe D is repeated. Make the length of copper pipe D the same. LCM of 5 and 3 is 15.
Total length of all the 4 copper pipes
= 12 u + 15 u + 20 u + 25 u
= 72 u
Copper Pipe BTotal Length =
2072 =
518Answer(s):
518