Q. 11

Mark the correct alternative in each of the following:

Out of 30 consecutive integers, 2 are chosen at random. The probability that their sum is odd, is

A. 14/29

B. 16/29

C. 15/29

D. 10/29

Answer :

. There are 15 odd numbers and 15 even numbers.
Sum is odd if you choose 1 odd and 1 even.
So, the probability of sum being odd is

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