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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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 = (𝑁𝑢𝑚𝑏𝑒𝑟 𝑜𝑓 𝑡𝑖𝑐𝑘𝑒𝑡𝑠 𝑏𝑜𝑢𝑔ℎ𝑡)/(𝑇𝑜𝑡𝑎𝑙 𝑁𝑢𝑚𝑏𝑒𝑟 𝑜𝑓 𝑡𝑖𝑐𝑘𝑒𝑡𝑠) 0.08 = (𝑵𝒖𝒎𝒃𝒆𝒓 𝒐𝒇 𝒕𝒊𝒄𝒌𝒆𝒕𝒔 𝒃𝒐𝒖𝒈𝒉𝒕)/𝟔𝟎𝟎𝟎 0.08 × 6000 = Number of tickets bought Number of tickets bought = 0.08 × 6000 Number of tickets bought = 𝟖/𝟏𝟎𝟎 × 6000 Number of tickets bought = 8 × 60 Number of tickets bought = 480 So, the correct answer is (C)

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.