Question 946565: 1 How many multiples of 50 are there from 250 and 900
2 Consecutive numbers differ by 1 find three consecutive numbers that add up to 60
Answer by richard1234(7193)   (Show Source):
You can put this solution on YOUR website! 1. {250, 300, 350, ..., 900}
To find # of elements, we can subtract 200 from each element and divide by 50.
|{250, 300, 350, ..., 900}| = |{1, 2, 3, ..., 14}|, 14 numbers (inclusive)
2. 60/3 = 20
Numbers: 19, 20, 21
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