Quant Question Of The Day: 141
Probability
If Ram shoots 16 arrows at a target the probability of hitting it at least once is 15/16.What is the probability of hitting the target at least once if he shoots 8 arrows?
1. 1/4
2. 1/2
3. 3/4
4. 13/16
After shooting 16 arrows probability of hitting the target at least once= 15/16 i.e. probability of hitting none = 1 – 15/16 = 1/16 probability of not hitting the target in one arrow = (1/16)1/16 probability of not hitting the target in 8 arrows = ((1/16)1/16)8 = (1/16)0.5 = 1/4 Hence, probability of hitting the target at least once after shooting 8 arrows = 1 – 1/4 =3/4(3)
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