Question: Out of 15 consecutive numbers, 2 are chosen at random. The probability that they are both odds or both primes is_________?

• 1. 10/17
• 2. 10/19
• 3. 46/105
• 4. Cannot be determined

Question: 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?

• 1. 4/9
• 2. 5/9
• 3. 7/9
• 4. 8/9

Question: 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?

• 1. 3/22
• 2. 4/21
• 3. 2/21
• 4. 1/14

Question: 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?

• 1. 1/455
• 2. 2/455
• 3. 1/91
• 4. 4/455

Question: 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?

• 1. 17/91
• 2. 33/91
• 3. 51/91
• 4. 65/91

Question: 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.

• 1. 6/63
• 2. 2/63
• 3. 125/126
• 4. 1/126

Question: 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.

• 1. 62/63
• 2. 125/126
• 3. 1/63
• 4. 1/126

Question: Three 6 faced dice are thrown together. The probability that exactly two dice show the same number on them is -.

• 1. 5/9
• 2. 5/12
• 3. 1/36
• 4. 7/12

Question: Three 6 faced dice are thrown together. The probability that no two dice show the same number on them is__________?

• 1. 7/12
• 2. 5/9
• 3. 1/36
• 4. 5/12

Question: Three 6 faced dice are thrown together. The probability that all the three show the same number on them is -.

• 1. 1/216
• 2. 1/36
• 3. 5/9
• 4. 5/12