Bradley owns b video game cartridges. If Bradley’s total is one-fourth the total owned by James and six times the total owned by Charlie, how many video game cartridges do the three of them own altogether, in terms of b?	Choose the correct choice from the following choices.
A) (16/3)b B) (31/6)b C) (13/6)b D) (19/12)b E) (7/12)b
b = (31/6)bradley’s total   4b = James’s total   (1/6)b = Charlie’s total   Add each total   b + 4b+ (1/6)b = 5b + (1/6)b = = (31/6)b   Answer : (31/6)b
<result>B</result>
Bradley owns b video game cartridges. If Bradley’s total is one-fourth the total owned by James and six times the total owned by Charlie, how many video game cartridges do the three of them own altogether, in terms of b?