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A number lying between 1000 and 2000 is such that on division by 2, 3, 4, 5, 6, 7 and 8 leaves the remainders 1, 2, 3, 4, 5, 6 and 7 respectively. The number is1. 18762. 17743. 16794. None of the above |
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Answer» Correct Answer - Option 3 : 1679 Given: A number lying between 1000 and 2000 is such that on division by 2, 3, 4, 5, 6, 7 and 8 leaves the remainders 1, 2, 3, 4, 5, 6 and 7 respectively Calculation: The common difference between the divisor and respective remainders = (2 - 1) = (3 - 2) = (4 - 3) =(5 - 4) = (6 - 5) = (7 - 6) = (8 - 7) = 1 LCM of 2, 3, 4, 5, 6, 7, and 8 = 840 The number = 840x - 1 The number lies between 1000 and 2000. So, x = 2 The number is = (840 × 2) - 1 1680 - 1 = 1679 ∴ The number is 1679 |
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