Question:The smallest number which when diminished by 3 is divisible by 21, 28, 36 and 45 is : 

A 423 
B 1257 
C 1263 
D 1260 

+ Answer
C 

+ Explanation
solution:
Required number = `(1.c.m. of 21, 28, 36, 45) +3 = 1263`.

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Md. Habib Ullah

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