Question : Which is the greatest number of four-digit divisible by 12, 25, and 45?
Option 1: 9890
Option 2: 9999
Option 3: 9800
Option 4: 9900
Correct Answer: 9900
Solution :
LCM of 12,25 and 45 = 900
Largest 4-digit number = 9999
9999 = 900 × 11 + 99
The greatest number divisible by 12, 25, and 45 = 9900
Hence, the correct answer is 9900.
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