CBSE Class 10 Maths (Standard) 2020 · Paper 30/5/1 · Question 33

Probability 3 marks Medium

Read the following passage and answer the questions given at the end : Diwali Fair A game in a booth at a Diwali Fair involves using a spinner first. Then, if the spinner stops on an even number, the player is allowed to pick a marble from a bag. The spinner and the marbles in the bag are represented in Figure-8. Prizes are given, when a black marble is picked. Shweta plays the game once.

Spinner with six sectors numbered 1, 4, 2, 10, 6, 8

Bag containing black and white marbles

iWhat is the probability that she will be allowed to pick a marble from the bag?[1]
iiSuppose she is allowed to pick a marble from the bag, what is the probability of getting a prize, when it is given that the bag contains $20$ balls out of which $6$ are black?[2]

Answer

(i)

P (allowed to pick) = \frac{5}{6}

; (ii)

P (prize) = \frac{3}{10}

🔒 Step-by-step solution

From the board paper

CBSE Class 10 Maths (Standard) 2020 · Paper 30/5/1, Question 33 — all 40 questions with answers →

CBSE Class 10 Maths (Standard) 2020 · Paper 30/5/1 · Question 33

Answer

From the board paper

More questions from Probability