Let X be the greatest number which when divides 2871, 4627 and 7700, the remainder in each case is Y. The value of (x-y) is:

200 205 202 210

202

4627 - 2871              7700 - 4627 =    1756                       3073          ↓                             ↓                  HCF = 439 = X \(\frac{2871}{439}\) = Remainder 237 = Y Now, X - Y = 439 - 237 = 202