A box contains nine bulbs out of which 4 are defective. If four bulbs are chosen at random, find the probability that at least one bulb is good.

Related Mcqs:

1. A box contains nine bulbs out of which 4 are defective. If four bulbs are chosen at random, find the probability that all the four bulbs are defective.

   A. 62/63 B. 125/126 C. 1/63 D. 1/126...

2. 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?

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

3. If a number is chosen at random from the set {1, 2, 3, …., 100}, then the probability that the chosen number is a perfect cube is___________?

   A. 1/25 B. 1/2 C. 4/13 D. 1/10...

4. In a party there are 5 couples. Out of them 5 people are chosen at random. Find the probability that there are at the least two couples?

   A. 5/21 B. 5/14 C. 9/14 D. 16/21...

5. A box contains 3 blue marbles, 4 red, 6 green marbles and 2 yellow marbles. If three marbles are picked at random, what is the probability that they are all blue?

   A. 1/455 B. 2/455 C. 1/91 D. 4/455...

6. A box contains 3 blue marbles, 4 red, 6 green marbles and 2 yellow marbles. If two marbles are picked at random, what is the probability that they are either blue or yellow?

   A. 3/22 B. 4/21 C. 2/21 D. 1/14...

7. 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...

8. 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...

9. The dimensions of an open box are 52, 40 and 29 cms. Its thickness is 2 cms. If 1 cm³ of metal used in the box weighs 0.5 gms, the weight of the box is________?

   A. 8.56 kg B. 7.76 kg C. 7.756 kg D. 6.832 kg...

10. A basket has 5 apples and 4 oranges. Three fruits are picked at random. The probability that at least 2 apples are picked is__________?

    A. 25/42 B. 9/20 C. 10/23 D. 41/42...