3 Answers

N = (max - min)/k+1

25 and 105 are divisible by 5. So.....................

105 - 25 = 80/5 = 16 + 1 = 17

11 years ago. Rating: 3
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I think you should divide 750 by 5  (150) and subtract 4, because you are not going to include the 5 10, 15, and 20, which are multiples of 5 and not included in your parameters of 25 - 750
There are 20 multiples of 5 in every 100, so 20 x 7 = 140 multiples between 0 and 750.  There would be 1/2 (20) because 50 is half of 100, and you need to add another 10 multiples.  That gives you 150 multiples multiples of 5 between 0 and 750.  Now, subtract the 4, and you get 150-4 = 146

I'd write the equation like this:   [(20 x 7) + (10 x 1)] - 4 = [140 + 10] - 4 = 150 - 4 = 146

or, using Chellanne"s formula:  (750 - 25)/5  + 1= 725/5  + 1= 145 + 1 = 146

11 years ago. Rating: 2
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11 years ago. Rating: 0
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