Question 15 - NCERT Exemplar - MCQ - Chapter 14 Class 10 Probability

Last updated at April 16, 2024 by

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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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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