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Chapter 15 Probability RS Aggarwal Solution for Class 9th Maths

Probability

Question 1:

Exercise 15A

Question 2:

Question 3:

Question 4:

Question 5:

Question 6:

Number of tests in which he gets more than 60% marks =2 Total numbers of tests =6

∴ Required probability

Question 7:

Question 8:

Question 9:

Question 10:

Total numbers of students =30

Numbers of students who lie in the interval21-30=6

∴ Required probability

Question 11:

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