**1.**

A box contains 27 marbles some are blue and others are green. If a marble is drawn at random from the box, the probability that it is blue is 1/3. Then how many number of green marbles in the box?

**A.**18

**B.**15

**C.**16

**D.**13

**2.**

In a bag there are 4 white, 4 red and 2 green balls. Two balls are drawn at random.What is the probability that at least one ball is of red colour?

**A.**4/3

**B.**3/3

**C.**2/3

**D.**1/3

**3.**

Sahil has two bags (A & B) that contain green and blue balls.In the Bag â€˜Aâ€™ there are 6 green and 8 blue balls and in the Bag â€˜Bâ€™ there are 6 green and 6 blue balls. One ball is drawn out from any of these two bags. What is the probability that the ball drawn is blue?

**A.**17/28

**B.**15/28

**C.**13/28

**D.**11/28

**4.**

In an examination, there are three sections namely Reasoning, Maths and English. Reasoning part contains 4 questions. There are 5 questions in maths section and 6 questions in English section. If three questions are selected randomly from the list of questions then what is the probability that all of them are from maths?

**A.**8/91

**B.**6/91

**C.**2/91

**D.**7/91

**5.**

A basket contains 5 red 4 blue 3 green marbles. If three marbles picked up random, What is the probability that either all are green or all are red?

**A.**7/20

**B.**5/20

**C.**6/20

**D.**1/20

**6.**

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

**A.**49/55

**B.**45/55

**C.**69/55

**D.**41/55

**7.**

A basket contains 5 red 4 blue 3 green marbles. If two marbles picked up random, What is the probability that both are red?

**A.**5/33

**B.**4/33

**C.**9/33

**D.**55/33

**8.**

A bag contains 5 red caps, 4 blue caps, 3 yellow caps and 2 green caps.If three caps are picked at random, what is the probability that two are red and one is green?

**A.**21/45

**B.**89/45

**C.**5/91

**D.**9/91

**9.**

A bag contains 5 red caps, 4 blue caps, 3 yellow caps and 2 green caps. If four caps are picked at random, what is the probability that two are red, one is blue and one is green?

**A.**60/1001

**B.**80/1001

**C.**22/1001

**D.**90/1001

**10.**

A bag contains 2 red caps, 4 blue caps, 3 yellow caps and 5 green caps. If three caps are picked at random, what is the probability that none is green?

**A.**1/13

**B.**2/13

**C.**5/13

**D.**3/13