The greatest number of four digits which is divisible by 10, 16, 24 and 80 is: Choose the correct choice from the following answers
A) 9000	B) 9420	C) 9660	D) 9840	E) 9900
Greatest number of 4-digits is 9999.   L.C.M. of 10,16, 24 and 80 is 240.   On dividing 9999 by 240, the remainder is 159.   Required number  (9999 - 159)= 
<gadget id="calculator"> (9999 - 159)</gadget>
<output>9_840</output>
9840.   Answer: Option 9840
<result>D</result>
The greatest number of four digits which is divisible by 10, 16, 24 and 80 is: