perplexus.info :: Probability : Nonnegative Sum Nuance

Nonnegative Sum Nuance (Posted on 2016-09-23)

Four nonnegative integers A,B,C and D, with 2A+B+C+D = 4, are chosen at random.

Find the probability that A+B+C+D = 3.

Submitted by K Sengupta

Rating: 5.0000 (1 votes)

Solution: (Hide)

The required probability is 3/11.
For an explanation, refer to the solution submitted by Charlie in this location.

Comments: ( You must be logged in to post comments.)

	Subject	Author	Date
	solution	Charlie	2016-09-23 10:44:58

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