Class 7: Maths Chapter 23 solutions. Complete Class 7 Maths Chapter 23 Notes.
RS Aggarwal Solutions for Class 7 Maths Chapter 23–Probability
RS Aggarwal 7th Maths Chapter 23, Class 7 Maths Chapter 23 solutions
Question 1.
Solution:
(i) Here, total number of trials = 300
Number of heads got = 136.
P(E) = 136300 = 3475
(ii) Total number of trials = 300
Number of tails got = 164
P(E) = 164300 = 4175
Question 2.
Solution:
Number times, the two coins were tossed = 200
Number of times got two heads = 58
Number of times got one head = 83
and number of times got no head = 59
(i) Probability of getting 2 heads : P(E) = 58200 = 29100
(ii) Probability of getting one head : P(E) = 83200
(iii) Probability of getting no head : P(E) = 59200
Question 3.
Solution:
Number of times, a dice was thrown = 100
(i) Number of times got 3 = 18
Probability will be
P(E) = 18100 = 950
(ii) Number of times got 6 = 9
Probability will be
P(E) = 9100
iii) Number of times got 4 = 15
Probability will be
P(E) = 15100 = 320
(iv) Number of times got 1 = 21
Probability will be
P(E) = 21100h
Question 4.
Solution:
Total number of ladies = 100
Number of ladies also like coffee = 36.
Number of ladies who dislike coffee = 64
(i) Probability of lady who like coffee :
P(E) = 36100 = 925
(ii) Probability of lady who dislikes coffee:
P(E) = 64100 = 1625
RS Aggarwal Solutions for Class 7 Maths Chapter 23: Download PDF
RS Aggarwal Solutions for Class 7 Maths Chapter 23–Probability
Download PDF: RS Aggarwal Solutions for Class 7 Maths Chapter 23–Probability PDF
Chapterwise RS Aggarwal Solutions for Class 7 Maths :
- Chapter 1–Integers
- Chapter 2–Fractions
- Chapter 3–Decimals
- Chapter 4–Rational Numbers
- Chapter 5–Exponents
- Chapter 6–Algebraic Expressions
- Chapter 7–Linear Equations in One Variable
- Chapter 8–Ratio and Proportion
- Chapter 9–Unitary Method
- Chapter 10–Percentage
- Chapter 11–Profit and Loss
- Chapter 12–Simple Interest
- Chapter 13–Lines and Angles
- Chapter 14–Properties of Parallel Lines
- Chapter 15–Properties of Triangles
- Chapter 16–Congruence
- Chapter 17–Constructions
- Chapter 18–Reflection and Rotational Symmetry
- Chapter 19–Three-Dimensional Shapes
- Chapter 20–Mensuration
- Chapter 21–Collection and Organisation of Data (Mean, Median and Mode)
- Chapter 22–Bar Graphs
- Chapter 23–Probability
About RS Aggarwal Class 7 Book
Investing in an R.S. Aggarwal book will never be of waste since you can use the book to prepare for various competitive exams as well. RS Aggarwal is one of the most prominent books with an endless number of problems. R.S. Aggarwal's book very neatly explains every derivation, formula, and question in a very consolidated manner. It has tonnes of examples, practice questions, and solutions even for the NCERT questions.
He was born on January 2, 1946, in a village in Delhi. He graduated from Kirori Mal College, University of Delhi. After completing his M.Sc. in Mathematics in 1969, he joined N.A.S. College, Meerut, as a lecturer. In 1976, he was awarded a fellowship for 3 years and joined the University of Delhi for his Ph.D. Thereafter, he was promoted as a reader in N.A.S. College, Meerut. In 1999, he joined M.M.H. College, Ghaziabad, as a reader and took voluntary retirement in 2003. He has authored more than 75 titles ranging from Nursery to M. Sc. He has also written books for competitive examinations right from the clerical grade to the I.A.S. level.
FAQs
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