A box contains 3 blue marbles, 4 red, 6 green marbles and 2 yellow marbles. If four marbles are picked at random, what is the probability that none is blue?

Probability 11/09/2021

A. 17/91
B. 33/91
C. 51/91
D. 65/91

Explanation:

Given that there are three blue marbles, four red marbles, six green marbles and two yellow marbles. When four marbles are picked at random, then the probability that none is blue is = ¹²C₄/¹⁵C₄ = (12 * 11 * 10 * 9)/(15 * 14 * 13 * 12) = 33/91

Related Mcqs:

    If two dice are thrown together, the probability of getting an even number on one die and an odd number on the other is__________?
    A. 1/4 B. 1/2 C. 3/4 D. 3/5...
    If six persons sit in a row, then the probability that three particular persons are always together is____________?
    A. 1/20 B. 3/10 C. 1/5 D. 4/5...
    A bag contains 7 green and 8 white balls. If two balls are drawn simultaneously, the probability that both are of the same colour is -.
    A. 8/15 B. 2/5 C. 3/5 D. 7/15...
    A bag contains five white and four red balls. Two balls are picked at random from the bag. What is the probability that they both are different color?
    A. 4/9 B. 5/9 C. 7/9 D. 8/9...
    Out of 15 consecutive numbers, 2 are chosen at random. The probability that they are both odds or both primes is_________?
    A. 10/17 B. 10/19 C. 46/105 D. Cannot be determined...

Leave a Reply

Your email address will not be published. Required fields are marked *