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What is the minimum number of sweets that must be added to an existing batch of 240 sweets, so that the total batch can equally be divided among 2,5 and 7 persons?

What is the minimum number of sweets that must be added to an existing batch of 240 sweets, so that the total batch can equally be divided among 2,5 and 7 persons? Correct Answer 40

LCM of 2, 5 and 7 are = 70ভাজ্য = ভাজক*ভাগফল + ভাগশেষ240 = 70*3 + 30So, minimum number is required = 70 - 30 = 40 (Ans.)

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