Question

A rifle man firing at a distant target and has only 10% chance of hitting it. The minimum number of rounds he must fire in order to have 50% chance of hitting it atleast once is:-​

Answer 1

Answer:

ok ok

Explanation:

so the rifle is A rifle man firing at a distant target and has only 10% chance of hitting it. The minimum number of rounds he must fire in order to have 50% chance of hitting it atleast once is:-.ok .MARK ME AS BRAINLEST..

Answer 2

Answer:

minimum number is 7

Explanation:

Given that the probability of hitting in one shot = 10/100 = 1/10

Therefore, the probability of not hitting = 1-(1/10) = 9/10

The probability of hitting at least once in “n” shots = 1- (9/10)n

From the given condition, 1- (9/10)n = ½

(9/10)n = ½

Taking logarithm on both the sides,we get n= 6.5 approximately.

Hence, the value of n is 7.

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