Gopi buys a fish from a shop for his aquarium.If it is equally likely that one of the coins will fall out when the bank is turned upside down, what is the probability that the coin (i) will be a 50 p coin ? (ii) will not be a ₹ 5 coin? A piggy bank contains hundred 50p coins, fifty ₹ 1 coins, twenty ₹ 2 coins and ten ₹ 5 coins.What is the probability that the marble taken out will be(i) red ?(ii) white ?(iii) not green? One marble is taken out of the box at random. A box contains 5 red marbles, 8 white marbles and 4 green marbles.If a bag contains 3 red balls and 5 black balls, and a ball is drawn at random from the bag, then the probability that the ball drawn is red is 3/8 and the probability that the ball drawn is not red is 5/8. NCERT Solutions for Class 10 Maths Chapter 15 Exercise 15.1 Question 8 What is the probability that the ball drawn is (i) red ? (ii) not red? Video Solution: A bag contains 3 red balls and 5 black balls. ☛ Check: NCERT Solutions for Class 10 Maths Chapter 15 (ii) Probability of not getting red ball P(not E) = 1 - P (E) = 1 - 3/8 = 5/8 Probability of drawing red ball P(E) = Number of possible outcomes/Total number of favourable outcomes Step (ii): After that, by using the formula for the sum of complementary event, find the probability of not getting a red ball. Probability of an event = Number of possible outcomes/total number of favourable outcomes Step (i): First find out the probability of drawing a red ball by using the formula given below. This question can be solved by using two steps. We will use the basic concepts of probability to solve the problem. A bag contains 3 red balls and 5 black balls.
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