| Stu/Sub | P | C | B | M |
| W | 70 | 90 | 50 | 85 |
| X | 55 | 80 | 95 | 60 |
| Y | 60 | 20 | 90 | 40 |
| Z | 90 | 80 | 40 | 65 |
The given table represents the marks obtained by four students W, X, Y and Z in four subjects P, C, B and M, with the maximum marks in each subject being 100.
The student who got the highest percentage of marks in P, C, M and B combined is:
Select the option that depicts the following transparent sheet (Problem Figure) when folded at the dotted line shown.
Select the option that represents the number of triangles in the given figure.
Pipes A, B and C are attached to an empty cistern. While the first two can fill the cistern in 4 and 10 hours, respectively, the third can drain the cistern, in 6 hours. If all the three pipes are opened simultaneously when the cistern is half-full, how many hours will be needed to fill the cistern?
\( \frac{90}{11} \)
\( \frac{30}{11} \)
\( \frac{60}{11} \)
\( \frac{120}{11} \)