Suppose we are randomly selecting a number between 1 and 400 (including 1 and 400). What is the probability of selecting either multiple of 4 or multiples of 5? with explanation!
Added by Lisa R.
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For multiples of 4: The smallest multiple of 4 in this range is 4 and the largest is 400. So, the multiples of 4 are 4, 8, 12, ..., 400. This is an arithmetic sequence with a common difference of 4. We can find the total number of terms in this sequence using the Show more…
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