Sam has 9 models. Bill has twice as many models as Jim. Jim has three less models than Sam. Show how to find the difference between the number of models Bill has and the number of models Sam has.

Question

Sam has 9 models.  Bill has twice as many models as Jim.  Jim has three less models than Sam.  Show how to find the difference between the number of models Bill has and the number of models Sam has.

PsyDAG · Answer

Sam = 9 (This is given in the first sentence.) Jim = 9-3 = 6 Bill = 2(6) = 12