Divide rs 13.26 between A,B and C , so that B's share is twice the share of A and A's share is 1/3 of C's share?????

a = 2b --> b = a/2

a = (1/3)c --> c = 3a

a+b+c = 13.26
a + a/2 + 3a = 13.26
2a + a + 6a = 26.52

solve for a, then sub into b= -- and c = ---