A coach is training 3 players. He observes that the player A can hit a target 4 times in 5 shots, player B can hit 3 times in 4 shots and the player C can hit 2 times in 3 shots.
A coach is training 3 players - Teachoo.jpg


From this situation answer the following:

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Question 1

Let the target is hit by A, B: the target is hit by B and, C: the target is hit by A and C. Then, the probability that A, B and, C all will hit, is

(a) 4/5

(b) 3/5

(c) 2/5

(d) 1/5

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Question 2

Referring to (i), what is the probability that B, C will hit and A will lose?

(a) 1/10

(b) 3/10

(c) 7/10

(d) 4/10

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Question 3

With reference to the events mentioned in (i), what is the probability that ‘any two of A, B and C will hit?

(a) 1/30

(b) 11/30

(c) 17/30

(d) 13/30

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Question 4

What is the probability that ‘none of them will hit the target’?

(a) 1/30

(b) 1/60

(c) 1/15

(d) 2/15

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Question 5

What is the probability that at least one of A, B or C will hit the target?

(a) 59/60

(b) 2/5

(c) 3/5

(d) 1/60

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  1. Chapter 13 Class 12 Probability (Term 2)
  2. Serial order wise

Transcript

Question A coach is training 3 players. He observes that the player A can hit a target 4 times in 5 shots, player B can hit 3 times in 4 shots and the player C can hit 2 times in 3 shots. From this situation answer the following:Question 1 Let the target is hit by A, B: the target is hit by B and, C: the target is hit by A and C. Then, the probability that A, B and, C all will hit, is (a) 4/5 (b) 3/5 (c) 2/5 (d) 1/5(c) 2/5 Question 2 Referring to (i), what is the probability that B, C will hit and A will lose? (a) 1/10 (b) 3/10 (c) 7/10 (d) 4/10(a) 1/10 Question 3 With reference to the events mentioned in (i), what is the probability that ‘any two of A, B and C will hit? (a) 1/30 (b) 11/30 (c) 17/30 (d) 13/30 (d) 13/30 Question 4 What is the probability that ‘none of them will hit the target’? (a) 1/30 (b) 1/60 (c) 1/15 (d) 2/15(b) 1/60 Question 5 What is the probability that at least one of A, B or C will hit the target? (a) 59/60 (b) 2/5 (c) 3/5 (d) 1/60(a) 59/60

About the Author

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.