What was the cost of a certain telephone call?
(1) The call lasted 8 minutes.
This statement does not contain any information about the cost of the call
Insufficient(2) The cost of the first minute of the call was $0.32, which was twice the cost of each minute of the call after the first
This statement does not contain any information about the duration of the call
InsufficientOn combining the information present in both the statements,
we can clearly compute the cost of the call $(0.32 + 7*0.16)
Therefore, the combination statement is enough
(Sufficient - Option C)
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