Question
Find the largest four-digit number which when divided
by each of 18, 21 and 24 leaves a remainder of 7.Solution
LCM of 18, 21 and 24.  504  Largest four-digit number = 9999 Largest four-digit number divided by 504. =9999/504 = 19.83 So, the desired number according to the question is. = 504×19+7=9583
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