This question is inspired from Example 13 - Chapter 15 Class 10 - Probability

Rahul and Ravi planned to play Business ( board game) in which they were supposed to use two dice

Rahul and Ravi planned to play Business - Teachoo.jpg

 

 

Slide11.JPG

Slide12.JPG

Question 1

Ravi got first chance to roll the dice. What is the probability that he got the sum of the two numbers appearing on the top face of the dice is 8?

(a) 1/26                 (b) 5/36                 (c) 1/18                     (d) 0

Slide13.JPG

Slide14.JPG

Question 2

Rahul got next chance. What is the probability that he got the sum of the two numbers appearing on the top face of the dice is 13?

(a) 1                     (b) 5/36                    (c) 1/18                     (d) 0

  Slide15.JPG

Slide16.JPG

Question 3

Now it was Ravi’s turn. He rolled the dice. What is the probability that he got the sum of the two numbers appearing on the top face of the dice is less than or equal to 12 ?

(a) 1                (b) 5/36              (c) 1/18                  (d) 0

Slide17.JPG

Slide18.JPG

Question 4

Rahul got next chance. What is the probability that he got the sum of the two numbers appearing on the top face of the dice is equal to 7 ?

(a) 5/9              (b) 5/36               (c) 1/6                      (d) 0

Slide19.JPG

Slide20.JPG

Question 5
Now it was Ravi’s turn. He rolled the dice. What is the probability that he got the sum of the two numbers appearing on the top face of the dice is greater than 8 ?
(a) 1               (b) 5/36               (c) 1/18                        (d) 5/18

Slide21.JPG

Slide22.JPG

  1. Chapter 15 Class 10 Probability (Term 1)
  2. Serial order wise

Transcript

Question Rahul and Ravi planned to play Business ( board game) in which they were supposed to use two diceFirst dice Second dice Question 1 Ravi got first chance to roll the dice. What is the probability that he got the sum of the two numbers appearing on the top face of the dice is 8? (a) 1/26 (b) 5/36 (c) 1/18 (d) 0Probability that sum of two numbers is 8 = (π‘π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ π‘œπ‘’π‘‘π‘π‘œπ‘šπ‘’π‘  π‘€β„Žπ‘’π‘Ÿπ‘’ π‘ π‘’π‘š 𝑖𝑠 8)/(π‘‡π‘œπ‘‘π‘Žπ‘™ π‘›π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ π‘œπ‘’π‘‘π‘π‘œπ‘šπ‘’π‘ ) = πŸ“/πŸ‘πŸ” So, correct answer is (b) Question 2 Rahul got next chance. What is the probability that he got the sum of the two numbers appearing on the top face of the dice is 13? (a) 1 (b) 5/36 (c) 1/18 (d) 0Number of outcomes where sum is 13 = 0 Probability that sum of two numbers is 13 = (π‘π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ π‘œπ‘’π‘‘π‘π‘œπ‘šπ‘’π‘  π‘€β„Žπ‘’π‘Ÿπ‘’ π‘ π‘’π‘š 𝑖𝑠 13)/(π‘‡π‘œπ‘‘π‘Žπ‘™ π‘›π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ π‘œπ‘’π‘‘π‘π‘œπ‘šπ‘’π‘ ) = 0/36 = 0 So, correct answer is (d) Question 3 Now it was Ravi’s turn. He rolled the dice. What is the probability that he got the sum of the two numbers appearing on the top face of the dice is less than or equal to 12 ? (a) 1 (b) 5/36 (c) 1/18 (d) 0Number of outcomes where sum is less than or equal to 12 = 36 Probability that sum of two numbers is less than or equal to 12 = (π‘π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ π‘œπ‘’π‘‘π‘π‘œπ‘šπ‘’π‘  π‘€β„Žπ‘’π‘Ÿπ‘’ π‘ π‘’π‘š 𝑖𝑠 𝑙𝑒𝑠𝑠 π‘‘β„Žπ‘Žπ‘› π‘œπ‘Ÿ π‘’π‘žπ‘’π‘Žπ‘™ π‘‘π‘œ 12)/(π‘‡π‘œπ‘‘π‘Žπ‘™ π‘›π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ π‘œπ‘’π‘‘π‘π‘œπ‘šπ‘’π‘ ) = 36/36 = 1 So, correct answer is (a) Question 4 Rahul got next chance. What is the probability that he got the sum of the two numbers appearing on the top face of the dice is equal to 7 ? (a) 5/9 (b) 5/36 (c) 1/6 (d) 0Number of outcomes where sum is 7 = 6 Probability that sum of two numbers is 7 = (π‘π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ π‘œπ‘’π‘‘π‘π‘œπ‘šπ‘’π‘  π‘€β„Žπ‘’π‘Ÿπ‘’ π‘ π‘’π‘š 𝑖𝑠 7)/(π‘‡π‘œπ‘‘π‘Žπ‘™ π‘›π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ π‘œπ‘’π‘‘π‘π‘œπ‘šπ‘’π‘ ) = 6/36 = 𝟏/πŸ” So, correct answer is (c) Question 5 Now it was Ravi’s turn. He rolled the dice. What is the probability that he got the sum of the two numbers appearing on the top face of the dice is greater than 8 ? (a) 1 (b) 5/36 (c) 1/18 (d) 5/18Number of outcomes where sum is greater than 8 = 4 + 3 + 2 + 1 = 10 Probability that sum of two numbers is greater than 8 = (π‘π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ π‘œπ‘’π‘‘π‘π‘œπ‘šπ‘’π‘  π‘€β„Žπ‘’π‘Ÿπ‘’ π‘ π‘’π‘š 𝑖𝑠 π‘”π‘Ÿπ‘’π‘Žπ‘‘π‘’π‘Ÿ π‘‘β„Žπ‘Žπ‘› 8)/(π‘‡π‘œπ‘‘π‘Žπ‘™ π‘›π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ π‘œπ‘’π‘‘π‘π‘œπ‘šπ‘’π‘ ) = 10/36 = πŸ“/πŸπŸ– So, correct answer is (d)

Chapter 15 Class 10 Probability (Term 1)
Serial order wise

About the Author

Davneet Singh's photo - Teacher, Engineer, Marketer
Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.