Concept: The question tests on basics of Factors and Divisibility
Solution:
LCM of 3,4,5 and 6 is 60
The smallest number greater than 300 and divisible by 60 is 360.
The largest number less than 600 and divisible by 60 is 540.
The total numbers divisible = Largest−SmallestDivisor+1=540−36060+1=3+1=4Largest−SmallestDivisor+1=540−36060+1=3+1=4
Option C