Direction: If all the three statements, marked (i), (ii) and (iii) are true, then which one of the following deductions, marked (1), (2), (3) and (4) can be MOST LOGICALLY deduced:
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(i) Whenever there is a fire, the fire alarm goes off
(ii) If the sprinklers do not start, the fire alarm does not go off.
(iii) If the sprinklers start, an automatic alarm is set off at the fire department.
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- If an automatic alarm is set off at the fire department,that means there must be a fire.
- If the sprinklers do not start, the automatic alai-in at the fire department is not set off.
- Whenever there is a fire, an automatic alarm is set off in the fire department.
- If there is no fire, no automatic alarm is set off in the fire department.
- If an automatic alarm is set off at the fire department,that means there must be a fire.
Correct Option: C
Lets eliminate options one by one-
Option A: Cannot be true since we cannot infer anything if we know that an automatic alarm is set off at the fire department.
Option B: If sprinklers do not start then the fire alarm doesn't go off. Further we cannot say anything about the automatic alarm at the fire department.
Option C: When there is a fire the fire alarm goes off so sprinklers start. Hence an automatic alarm is set off at the fire department.
Option (D) is similarly ruled out.
