Directions (Q.41-Q.45): A pharmaceutical company has tested five drugs on three different organisms. The following incomplete table reports if a drug works on the given organism. For example, drug A works on organism R while B and C work on Q.
Drug \ Organism | P | Q | R
A | | | tick
B | | tick |
C | | tick |
D | | |
E | | |
[Figure: incomplete table of drugs A to E against organisms P, Q, R. Only three cells are ticked: A on R, B on Q and C on Q; all other cells are blank.]
Following additional information is available:
- Each drug works on at least one organism but not more than two organisms.
- Each organism can be treated with at least two and at most three of these five drugs.
- On whichever organism A works, B also works. Similarly, on whichever organism C works, D also works.
- D and E do not work on the same organism.
PrepTarget