887 965 254 365 458 498 322 681
If all the numbers are added by the product of units digit and tens digit of a number, then find the difference between the largest and smallest number ?
887 965 254 365 458 498 322 681 New series is: 887+56 965+30 254+20 365+30 458+40 498+72 322+4 681+8 943 995 274 395 498 570 326 689 Required difference = 995-274= 721