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An executive in a company makes on an av...

An executive in a company makes on an average 5 telephone calls per hour at a cost of Rs. 2 per cell. The probability that in any hour the cost of the calls exceeds a sum of Rs. 4 is

A

`(2e^(4)-35)/(2e^(5))`

B

`(2e^(5)-37)/(2e^(5))`

C

`1-(37)/(e^(4))`

D

`1-(18.5)e^(5)`

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The correct Answer is:
B
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