## 31. In a simultaneous throw of two dice, what is the probability of getting a total of 7?

## 32. One card is drawn from a pack of 52 cards. What is the probability that the card drawn is either a red card or a king ?

## 33. Two cards are drawn from a pack of 52 cards. The probability that either both are red or both are king, is-

## 34. An urn contains 6 red, 4 blue, 2 green 3 yellow marbles. If two marbles are drawn at random from the run, what is the probability that both are red ?

## 35. A basket contains 4 red, 5 blue and 3 green marbles. If three marbles are picked up at random what is the probability that at least one is blue ?

## 36. A box contains 20 electric bulbs, out of which 4 are defective. Two balls are chosen at random from this box. The probability that at least one of them is defective, is -

## 37. An urn contains 6 red, 4 blue, 2 green and 3 yellow marbles. If two marbles are picked up at random, what is the probability that either both are green or both are yellow ?

## 38. Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5 ?

## 39. In a single throw of die, what is the probability of getting a number greater than 4 ?

## 40. One card is drawn at random from a pack of 52 cards. What is the probability that the card drawn is a face card ?

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