Q1. A man have two dice, if he rolled both dice, then find the probability that sum of digits will be 5 or 7 ?
Q2. A bag contains 3 red, 5 blue and 4 green ball. 1 ball is drawn at random. What is the probability of ball being either red or blue colour.
Q3. A box contains 12 red, 6 green and ‘x’ yellow balls. Probability of choosing one green ball out of the box is 2/9, then find the probability of choosing one ball which can be either red or yellow?
Q4. In how many different ways the letters of the word ‘ADVENTURE’ can be arranged such that ‘NT’ always come together?
(d) 9! /2!
(e) 8! /2!
Q5. If two dices are rolled together, then find the probability of getting a number of one dice greater than the number on other dice?
Q6. A bag has seven red, four white and three green balls while another bag has five red, six yellow and three blue balls. A bag is selected at random and a ball drawn out of it, then Find the probability that the ball drawn is red.
Q7. Find the number of ways in which the letters of the word ARRANGE can be arranged such that both R do not come together.
Q8. A rectangular field cost Rs. 110 for leveling at 50 paise per square meter. If the ratio of length to breadth is 11: 5. Find the breadth of field ?
(a) 12 m
(b) 10 m
(c) 5 m
(d) 16 m
(e) 15 m
Q9. A bag contains 6 red balls, 4 green balls and 8 white balls. If three balls are drawn at random, find the probability that one is red ball and two are green balls?