Bunuel wrote:

A call to Rosie’s Psychic Hotline costs $5.99 for the first 2 minutes and $1.99 for each additional minute. Stuart called the hotline for x minutes, where x is an integer. How many minutes long was the call?

(1) The total charge for the call was $11.96.

(2) The charge for the last 3 minutes of the call was $0.01 less than half the total cost of the call

Total Cost = 5.99 + 1.99*(x-2)

1) Total cost = 11.96. We can find out the value of x easily by substituting total cost in the above equation. hence, Sufficient.

2) Last 2 minutes charge = (total/2)-0.1. We don't know the total cost. Also, even if we know the total cost, still we cannot find out the how many minutes were there before the last 3 minutes. hence, insufficient.

SO, answer is A.

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