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Rajan@2021
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Guru

Find the least number which when divided by 35, 56 and 91 leaves the same remainder 7 in each case.

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This question is taken from real numbers chapter in which we have given three numbers 35, 56 and 91 and we have been asked to find the smallest number which when divided by the above number leaves remainder 7 in each case.

Kindly give me a detailed solution of this question

RS Aggarwal, Class 10, chapter 1B, question no 10

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  1. The smallest number which when divided by 35,56 and 91= LCM of 35,56 and 91
    35=5×7
    56=2×2×2×7
    91=7×13
    LCM =7×5×2×2×2×13=3640
    The smallest number that when divided by 35,56,91 leaves a remainder 7 in each case =3640+7=3647.

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