Answer :

Jim has 54 comic books.
Steps:
1.You do 27/1 times 2/3 which equals to 54/3
2. 54/3 simplifies to 18
3. Since 18 would be Charles's number, you would do 18 times 3
4. 18 times 3 equals 54
alexak
let j be the number of comic books jim has.
let c be the number of comic books charles has.
let b be the number of comic books bob has.
we know b = 27.
c= 2/3 * 27 = 18 since charles has 2/3 many books of bob's 27.
j= 3 * 18 = 54 since jim has three times as many books as charles.

Answer: Jim has 54 comic books.

Hope that helps . . .