NCERT Solutions · Class 11

NCERT Solutions for Class 11 Maths Chapter 16 Probability — Exercise 16.20

Step-by-step NCERT Solutions for Class 11 Maths Chapter 16 (Probability), Exercise 16.20. 10 questions with answers — read online free on NCERT Help.

Maths Chapter 16 Exercise 16.20 10 questions
ClassClass 11
SubjectMaths
ChapterChapter 16 — Probability
ExerciseExercise 16.20
Questions solved10

Exercises in this chapter

Questions & step-by-step answers

Miscellaneous Exercise on Chapter 16

NCERT class 11 maths chapter 16 Probability

Question 1:A box contains 10 red marbles, 20 blue marbles and 30 green marbles. 5 marbles are drawn from the box, what is the probability that (i) all will be blue? (ii) atleast one will be green?

Exercise Miscellaneous maths class 11 Chapter 16 Probability

Question 2:4 cards are drawn from a well – shuffled deck of 52 cards. What is the probability of obtaining 3 diamonds and one spade?

CBSE class 11 maths ncert solutions Chapter 16

Question 3:A die has two faces each with number ‘1’, three faces each with number ‘2’ and one face with number ‘3’. If die is rolled once, determine (i) P(2) (ii) P(1 or 3) (iii) P(not 3)

class 11 maths solutions Probability

Question 4:In a certain lottery 10,000 tickets are sold and ten equal prizes are awarded. What is the probability of not getting a prize if you buy (a) one ticket (b) two tickets (c) 10 tickets.

NCERT class 11 chemistry chapter 16 exercise solutions

Question 5:Out of 100 students, two sections of 40 and 60 are formed. If you and your friend are among the 100 students, what is the probability that (a) you both enter the same section? (b) you both enter the different sections?

Probability class 11 ncert solutions

Question 6:Three letters are dictated to three persons and an envelope is addressed to each of them, the letters are inserted into the envelopes at random so that each envelope contains exactly one letter. Find the probability that at least one letter is in its proper envelope.

class 11 Maths NCERT Solutions Chapter 16 Probability Exercise Miscellaneous

Question 7:A and B are two events such that P(A) = 0.54, P(B) = 0.69 and P(A Ç B) = 0.35. Find (i) P(A È B) (ii) P(A´ Ç B´) (iii) P(A Ç B´) (iv) P(B Ç A´)

Exercise Miscellaneous class 11 Math ncert solutions Chapter 16

Question 8:From the employees of a company, 5 persons are selected to represent them in the managing committee of the company. Particulars of five persons are as follows: S. No. Name Sex Age in years

NCERT class 11 maths chapter 16 Probability

Question 1:Harish M 30

Exercise Miscellaneous maths class 11 Chapter 16 Probability

Question 2:Rohan M 33

CBSE class 11 maths ncert solutions Chapter 16

Question 3:Sheetal F 46

class 11 maths solutions Probability

Question 4:Alis F 28

NCERT class 11 chemistry chapter 16 exercise solutions

Question 5:Salim M 41 A person is selected at random from this group to act as a spokesperson. What is the probability that the spokesperson will be either male or over 35 years?

Miscellaneous Exercise on Chapter 161. A box conta

Question 9:If 4-digit numbers greater than 5,000 are randomly formed from the digits 0, 1, 3, 5, and 7, what is the probability of forming a number divisible by 5 when, (i) the digits are repeated? (ii) the repetition of digits is not allowed?

Question 10:The number lock of a suitcase has 4 wheels, each labelled with ten digits i.e., from 0 to 9 The lock opens with a sequence of four digits with no repeats. What is the probability of a person getting the right sequence to open the suitcase?

About this exercise

NCERT Solutions for Class 11 Chapter 16 ExMiscellaneous Probability

Frequently asked questions

Where can I read NCERT Solutions for Class 11 Maths Exercise 16.20?

You can read step-by-step NCERT Solutions for Class 11 Maths Chapter 16 Exercise 16.20 online on NCERT Help at this page — no download required.

How many questions are solved in Exercise 16.20?

This page includes 10 NCERT textbook questions with detailed answers.

What are the other exercises in this chapter?

Browse all exercises for Class 11 Maths Chapter 16 using the exercise switcher on this page or the full chapter list on the subject hub.