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Two aeroplanes I and II bomb a target in...

Two aeroplanes I and II bomb a target in succession . The probabilities of I and II scoring a hit correctly are 0.3 and 0.2 respectively. The second plane will bomb only if the first misses the target. The probability that the target is hit by second plane is

A

a) 0.2

B

b) 0.7

C

c) 0.06

D

d) 0.14

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