The length of pipe P is
45 of the length of pipe S and the length of pipe S is
23 of the length of pipe Q and
23 of the length of pipe R. What fraction of the total length of the 4 pipes is pipe R?
P |
S |
Q |
R |
Total |
4x2 |
5x2 |
|
|
|
|
2x5 |
3x5 |
|
|
|
2x5 |
|
3x5 |
|
8 u |
10 u |
15 u |
15 u |
48 u |
The length of pipe S is repeated. Make the length of pipe S the same. LCM of 5 and 2 is 10.
Total length of all the 4 pipes
= 8 u + 10 u + 15 u + 15 u
= 48 u
Pipe RTotal Length =
1548 =
516Answer(s):
516