The length of copper pipe R is
23 of the length of copper pipe U and the length of copper pipe U is
15 of the length of copper pipe S and
14 of the length of copper pipe T. What fraction of the total length of the 4 copper pipes is copper pipe T?
R |
U |
S |
T |
Total |
2x1 |
3x1 |
|
|
|
|
1x3 |
5x3 |
|
|
|
1x3 |
|
4x3 |
|
2 u |
3 u |
15 u |
12 u |
32 u |
The length of copper pipe U is repeated. Make the length of copper pipe U the same. LCM of 3 and 1 is 3.
Total length of all the 4 copper pipes
= 2 u + 3 u + 15 u + 12 u
= 32 u
Copper Pipe TTotal Length =
1232 =
38Answer(s):
38