A sum of money is to be distributed among A , B , C , D with ratio 5:2:4:3 . If C gets 1000 more than D then what is the share of B ?
Assuming that G.C.D. of -LRB- a , b -RRB- = 1 . How can I prove that G.C.D. of -LRB- -LRB- a ^ 2 -RRB- - ab + b ^ 2 , a + b -RRB- = 1 or 3 ?