A boy calculates that the probability of his winning the first prize in a lottery is 7/100. How many tickets has he bought is 2000 tickets are sold?
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Given : A boy calculates that the probability of his winning the first prize in a lottery is 7/100.
To Find : How many tickets has he bought if 2000 tickets are sold
Solution:
Tickets sold = 2000
Tickets bought = N
probability of his winning the first prize in a lottery = N/2000
boy calculates that the probability of his winning the first prize in a lottery is 7/100.
=> N/2000 = 7/100
=> N = 14000/100
=> N = 140
He has bough 140 lottery tickets
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Answer:
He has brought 140 lottery tickets
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