How many integers between 200 and 400 are divisible by7
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The smallest number meeting the requirements (X/7 > 200) is 29 and the largest (X/7 < 400) is 58. So the set includes 29 elements (58-28) with the mid value being 43. So then the total of these 29 elements is 29 x (43 x 7) = 8729.
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300,350 good morning and
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