The greatest number of four digits which is divisible by 20,25,30 and 70 is: Pick one
A) 8400	B) 9200	C) 9600	D) 9800	E) 9960
Greatest number of 4-digits is 9999.   L.C.M. of 20, 25, 30 and 70 is 2100.   On dividing 9999 by 2100, the remainder is 1599.   Required number  (9999 - 1599)= 
<gadget id="calculator"> (9999 - 1599)</gadget>
<output>8_400</output>
8400.   8400nswer: Option 8400
<result>A</result>
The greatest number of four digits which is divisible by 20,25,30 and 70 is: