Find the greatest number that will divide 40, 60 and 120 so as to leave the same remainder in each case.  Choose the most appropriate option:
A) 2 B) 3 C) 4 D) 5 E) 6
Required number = H.C.F. of (60 - 40), (120 - 60) and (120-40)   = H.C.F. of 20, 60 and 80 = 2.   2NSWER :2
<result>A</result>
Find the greatest number that will divide 40, 60 and 120 so as to leave the same remainder in each case.