The length of pipe R is
34 of the length of pipe U and the length of pipe U is
13 of the length of pipe S and
18 of the length of pipe T. What fraction of the total length of the 4 pipes is pipe S?
R |
U |
S |
T |
Total |
3x1 |
4x1 |
|
|
|
|
1x4 |
3x4 |
|
|
|
1x4 |
|
8x4 |
|
3 u |
4 u |
12 u |
32 u |
51 u |
The length of pipe U is repeated. Make the length of pipe U the same. LCM of 4 and 1 is 4.
Total length of all the 4 pipes
= 3 u + 4 u + 12 u + 32 u
= 51 u
Pipe STotal Length =
1251 =
417Answer(s):
417