25 lottery tickets are marked with first 25 numerals. A ticket is drawn at random. Find the probability that it is a multiple of 5 and 7
Question
25 lottery tickets are marked with first 25 numerals. A ticket is drawn at random. Find the probability that it is a multiple of 5 and 7
Solution
To solve this problem, we first need to identify the numbers that are multiples of both 5 and 7 within the first 25 numerals.
The multiples of 5 are: 5, 10, 15, 20, 25. The multiples of 7 are: 7, 14, 21.
The only number that is a multiple of both 5 and 7 in the first 25 numerals is 5*7 = 35, but 35 is not within the first 25 numerals.
Therefore, there are no numbers that are multiples of both 5 and 7 within the first 25 numerals.
The probability of drawing a ticket that is a multiple of both 5 and 7 is therefore 0.
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