melvtheeagle melvtheeagle

08-03-2016
Mathematics

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Find a number between 364 and 384 that is both a multiple of 7 and a multiple of 3

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apologiabiology apologiabiology

08-03-2016

if it is divisible by 3 and 7 then it is divisible by (3 times 7)
3 time s7=21

just do muliplyes of 21 and find which are between 364 and 384

21
42
63
...
336
357
378
399

answer is 378

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