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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 Β  Β Β  Β Β Β Β Β Β Β (B) 240

(C) 480 Β  Β Β Β Β Β Β Β (D) 750

Β 

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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 = (π‘π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ π‘‘π‘–π‘π‘˜π‘’π‘‘π‘  π‘π‘œπ‘’π‘”β„Žπ‘‘)/(π‘‡π‘œπ‘‘π‘Žπ‘™ π‘π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ π‘‘π‘–π‘π‘˜π‘’π‘‘π‘ ) 0.08 = (π‘΅π’–π’Žπ’ƒπ’†π’“ 𝒐𝒇 π’•π’Šπ’„π’Œπ’†π’•π’” π’ƒπ’π’–π’ˆπ’‰π’•)/πŸ”πŸŽπŸŽπŸŽ 0.08 Γ— 6000 = Number of tickets bought Number of tickets bought = 0.08 Γ— 6000 Number of tickets bought = πŸ–/𝟏𝟎𝟎 Γ— 6000 Number of tickets bought = 8 Γ— 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 12 years. He provides courses for Maths and Science at Teachoo.