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Byju's Answer
Standard XII
Mathematics
Chain Rule of Differentiation
Statement: A ...
Question

Statement: A warning in a train compartment - "To stop train, pull chain. Penalty for improper use Rs.500."
Assumptions:
I. Some people misuse the alarm chain.
II. On certain occasions, people may want to stop a running train.

A
Only assumption I is implicit
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B
Only assumption II is implicit
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C
Either I or II is implicit
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D
Neither I nor II is implicit
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E
Both I and II are implicit
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Solution

The correct option is E Both I and II are implicit
The statement says about the chain, its use and penalty.
As in assumption I it talks about the misuse of the chain so indicates the need of imposing penalty whereas assumption II says that it can be used to stop the train on special occasion.
Thus both the assumption supports the statement.
Hence option E is correct.

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