The least number which should be added to 2520 so that the sum is exactly divisible by 5,6,4 and 3 is :
Choose the correct choice from the following.
A) 3  B) 18  C) 23  D) 33  E) 43
Solution   L.C.M. of 5,6,4 and 3 = 60. on dividing 2520 by 60, the remainder is 42.   ∴ Number to be added = (60-42)= 
<gadget id="calculator">(60-42)</gadget>
<output>18</output>
18. Answer 18
<result>B</result>
The least number which should be added to 2520 so that the sum is exactly divisible by 5,6,4 and 3 is :