One ticket is drawn at random from a bag containing tickets numbered 1 to 40. The probability that the selected ticket has a number which is a multiple of 5 is

(A) 1/5  (B) 3/5     

(C) 4/5   (D) 1/3  

Slide25.JPG

Advertisement

Slide26.JPG

Advertisement

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

Transcript

Question 16 One ticket is drawn at random from a bag containing tickets numbered 1 to 40. The probability that the selected ticket has a number which is a multiple of 5 is (A) 1/5 (B) 3/5 (C) 4/5 (D) 1/3 Total number of tickets = 40 Multiples of 5 less than or equal to 40 are… 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, … Number of multiples of 5 less than or equal to 40 = 8 Thus, P(getting a multiple of 5) = (𝑁𝑢𝑚𝑏𝑒𝑟 𝑜𝑓 𝑚𝑢𝑙𝑡𝑖𝑝𝑙𝑒𝑠 𝑜𝑓 5)/(𝑇𝑜𝑡𝑎𝑙 𝑛𝑢𝑚𝑏𝑒𝑟𝑠) = 8/40 = 𝟏/𝟓 So, the correct answer is (A)

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.