CAT 2002 — DILR Question 38
Answer the following question based on the information given below.
A causes B or C, but not both.
F occurs only if B occurs.
D occurs if B or C occurs.
E occurs only if C occurs.
J occurs only if E or F occurs.
D causes G or H or both.
H occurs if E occurs.
G occurs if F occurs.
Which of these may occur as a result of a cause not mentioned?
Answer & solution
- A
E
- B
Both E and F
Either B or C
- D
J
Consider option 1:
E occurs only if C occurs,
∴ E cannot occur because of a cause not mentioned.
Consider option 2:
E occurs only if C occurs and F occurs only if B occurs,
∴ E and F both cannot occur as a result of a cause not mentioned.
Consider option 4:
J occurs only if E or F occurs,
∴ J also cannot occur as a result of a cause not mentioned.
Consider option 3:
It is given that A causes B or C but not both,
∴ Either B or C can occur by a cause not mentioned.
Hence, option (c).