$900 is to be divided among A,B, and C so that C will receive twice as much as A and B will receive $100 more than A. How much does B receive in $?
A + B + C = 900
C = 2A B = A + 100
A + (A + 100) + (2A) = 900
4A + 100 = 900
4A = 800
A = 200
B = A + 100 = 200 + 100 = 300
