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1.
If 3 balls are drawn at random, what is the probability that 1 is green and the other 2 are black ?
2.
There are 8 positive numbers and 6 negative numbers. 4 numbers are chosen at random and multiplied. Find the probability that the product is a positive number ?
3.
A five digit number is formed with the digit 1,2,3,4 and 5 without repetition. Find the chance that the number is divisible by 5 ?
4.
A bag contains 6 red, 5 blue and 2 green balls. If 2 balls are picked at random, what is the probability that both are green?
5.
If You toss a coin and roll a die. What is the probability of getting a head and a 3 on the die?
6.
From a pack of 52 cards, 3 cards are drawn. What is the probability that one is ace, one is queen and one is jack?
7.
Two dice are thrown simultaneously. Find the probability of getting a multiple of 2 on one dice and multiple of 3 on the other dice.
8.
Two dice are tossed. The probability that the total score is a prime number is
9.
The probability of two persons of passing the interview are 1/3 and 3/5. Then calculate the probability that only one of them pass the interview ?
10.
Among a group of 5 boys and 6 girls, 4 members is to be selected for an event. Find the probability that at least one boy is selected ?