NCERT Solutions for Class 10 Maths Chapter 15 Probability Ex 15.2

NCERT Solutions for Class 10 Maths Chapter 15 Probability Ex 15.2 are part of NCERT Solutions for Class 10 Maths. Here are we have given Chapter 15 Probability Class 10 NCERT Solutions Ex 15.2.

BoardCBSE
TextbookNCERT
ClassClass 10
SubjectMaths
ChapterChapter 15
Chapter NameProbability
ExerciseEx 15.2
Number of Questions Solved5
CategoryNCERT Solutions

NCERT Solutions for Class 10 Maths Chapter 15 Probability Ex 15.2

NCERT Solutions for Class 10 Maths

Question 1.
Two customers Shyam and Ekta are visiting a particular shop in the same week (Tuesday to Saturday). Each is equally likely to visit the shop on any day as on another day. What is the probability that both will visit the shop on
(i) the same day? (ii) consecutive days? (iii) different days?

Solution:

NCERT Solutions for Class 10 Maths Chapter 15 Probability ex 15.2 1

Question 2.
A die is numbered in such a way that its faces show the number 1, 2, 2, 3, 3, 6. It is thrown two times and the total score in two throws is noted. Complete the following table which gives a few values of the total score on the two throws:
NCERT Solutions for Class 10 Maths Chapter 15 Probability ex 15.2 q2

What is the probability that the total score is at least 6?
(i) even (ii) 6 (iii) (iv) at least 6

Solution:
NCERT Solutions for Class 10 Maths Chapter 15 Probability ex 15.2 s2

Question 3.
A bag contains 5 red balls and some blue balls. If the probability of drawing a blue ball is doubles that of a red ball, determine the number of blue balls in the bag.
Solution:
NCERT Solutions for Class 10 Maths Chapter 15 Probability ex 15.2 s3

Question 4.
A box contains 12 balls out of which x are black. If one ball is drawn at random from the box, what is the probability that it will be a black ball?
If 6 more black balls are put in the box, the probability of drawing a black ball is now double of what it was before. Find x.
Solution:
NCERT Solutions for Class 10 Maths Chapter 15 Probability ex 15.2 s4

Question 5.
A jar contains 24 marbles, some are green and others are blue. If a marble is drawn at random from the jar, the probability that it is green is 2/3. Find the number of blue balls in the jar.
Solution:
NCERT Solutions for Class 10 Maths Chapter 15 Probability ex 15.2 s5

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