A girl calculates that the probability of her winning the first prize in a lottery is 0.08. If 6000 tickets are sold, how many tickets has she bought?

(A)40             (B) 240

(C) 480          (D) 750

 

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

Transcript

Question 15 A girl calculates that the probability of her winning the first prize in a lottery is 0.08. If 6000 tickets are sold, how many tickets has she bought? 40 (B) 240 (C) 480 (D) 750 Now, Probability of winning = (๐‘๐‘ข๐‘š๐‘๐‘’๐‘Ÿ ๐‘œ๐‘“ ๐‘ก๐‘–๐‘๐‘˜๐‘’๐‘ก๐‘  ๐‘๐‘œ๐‘ข๐‘”โ„Ž๐‘ก)/(๐‘‡๐‘œ๐‘ก๐‘Ž๐‘™ ๐‘๐‘ข๐‘š๐‘๐‘’๐‘Ÿ ๐‘œ๐‘“ ๐‘ก๐‘–๐‘๐‘˜๐‘’๐‘ก๐‘ ) 0.08 = (๐‘ต๐’–๐’Ž๐’ƒ๐’†๐’“ ๐’๐’‡ ๐’•๐’Š๐’„๐’Œ๐’†๐’•๐’” ๐’ƒ๐’๐’–๐’ˆ๐’‰๐’•)/๐Ÿ”๐ŸŽ๐ŸŽ๐ŸŽ 0.08 ร— 6000 = Number of tickets bought Number of tickets bought = 0.08 ร— 6000 Number of tickets bought = ๐Ÿ–/๐Ÿ๐ŸŽ๐ŸŽ ร— 6000 Number of tickets bought = 8 ร— 60 Number of tickets bought = 480 So, the correct answer is (C)

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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.