Question
The probabilities of solving a problem by three students
A, B and C are 3/7, 5/9 and 1/5, respectively. The probability that problem will be solved is:Solution
ATQ, P(A) = 3/7, P(B) = 5/9, P(C) = 1/5 All students solves the problem independently, so if at least one of them solves the problem then the problem is considered solved. Probability that the problem is unsolved = [1 – P(A)][1 – P(B)][1 – P(C)] = (64/315) The probability that the problem will be solved = 1 – Probability that the problem is unsolved = (1- (64/315)) = (251/315)
If in a certain way ‘Red’ is related to ‘Banana’, Blue is related to ‘Grapes’ in the same way ‘Black’ is related to who among the follow...
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Which of the following combination is correct?
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On which of the following shelf number does Box G is kept from the top?
Which of the following combination is correct?
Who lives immediately above E in the same type of flat?
How many floors are there in between the floor of the one who likes Yellow and the one who lives at floor 8th?
Who among the following person lives South west of N and North west of Q?
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