Probability — Class 10 Mathematics NCERT Solutions (Free)

Free step-by-step NCERT solutions for Class 10 Mathematics chapter "Probability" — 9 important questions with detailed answers for CBSE board exam preparation.

TL;DR: Free step-by-step NCERT solutions for Class 10 Mathematics chapter "Probability" — 9 important questions with detailed answers for CBSE board exam pre…

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Key Questions Covered:

  1. A fair die is thrown once. What is the probability of getting a number greate…
  2. Two fair dice are thrown simultaneously. Find the probability of getting a su…
  3. A bag contains 5 red balls, 3 blue balls, and 2 green balls. A ball is drawn …
  4. + 6 more questions in the full chapter

Solutions Summary:

Question Status
A fair die is thrown once. What is the probability of get… ✓ Solved
Two fair dice are thrown simultaneously. Find the probabi… ✓ Solved
A bag contains 5 red balls, 3 blue balls, and 2 green bal… ✓ Solved

Showing 3 of 9 questions

Q1: A fair die is thrown once. What is the probability of getting a number greater than 4?

Step 1: Total possible outcomes when a die is thrown = {1, 2, 3, 4, 5, 6} = 6 Step 2: Favorable outcomes (number > 4) = {5, 6} = 2 Step 3: Probability = Favorable outcomes / Total outcomes Step 4: P(number > 4) = 2/6 = 1/3 Final Answer: Probability = 1/3 or approximately 0.333

Q2: Two fair dice are thrown simultaneously. Find the probability of getting a sum of 7.

Step 1: Total possible outcomes when two dice are thrown = 6 × 6 = 36 Step 2: Favorable outcomes (sum = 7): (1,6), (2,5), (3,4), (4,3), (5,2), (6,1) Step 3: Number of favorable outcomes = 6 Step 4: Probability = 6/36 = 1/6 Final Answer: Probability = 1/6 or approximately 0.167

Q3: A bag contains 5 red balls, 3 blue balls, and 2 green balls. A ball is drawn at random. What is the probability of drawing a blue ball?

Step 1: Total number of balls = 5 + 3 + 2 = 10 Step 2: Number of blue balls = 3 Step 3: Probability = Number of blue balls / Total number of balls Step 4: P(blue) = 3/10 Final Answer: Probability = 3/10 or 0.3

Showing 3 of 9 questions. Visit the full page for complete solutions.