QuestionJAMBGeneral Maths1989ObjectiveProbabilityProbability
Two numbers are chosen at random from the three numbers 1, 3, 6. Find the probability that the sum of the two is not odd.
Worked solution (try it first)
There are three possible pairs:
{1,3},
{1,6} and
{3,6}.
Their sums are 4, 7 and 9. "Not odd" means even, and only
1+3=4 is even.
So the probability is
31, option C.
Report a problem with this question