Subject
Quantitative Aptitude
Topic
Probability
A man can hit a target once in 4 shots. If he fires 4 shots in succession, what is the probability that he will hit his target?
A man can hit a target once in 4 shots. If he fires 4 shots in succession, what is the probability that he will hit his target?
ক)
1/256খ)
81/256গ)
175/256ঘ)
144/256Explanation
Probability of a hit in one shot = 1/4 Probability of a miss in one shot = 1-1/4=3/4 1 - P(misses 1st time AND misses 2nd time AND misses 3rd time AND misses 4th time) "AND" means "MULTIPLY": 1 - P(misses 1st time)*P(misses 2nd time)*P(misses 3rd time)*P(misses 4th time) so probability=1-(3/4X3/4X3/4x3/4)=1-81/256=175/256Related questions
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