# Model Method - Questions and Answers

Question posted by Agnely from Cidra PR:

Question solved by Model Method: John and Max had an equal amount of money each. After john spent \$25 and Max spent \$18, the ratio of John's money to Max money was 2:3. How much money did each boy have at first?

Step 1: This question involves the Non-Constant Transfer Concept. It is easier to start from the "After" model. Since the ratio of John's money to Max money was 2:3 after the transfer, we draw 2 boxes to represent the amount of money John had and draw 3 boxes to represent the amount of money Max had.

Step 2: As both of them had the same amount of money before John spent \$25 and Max spent \$18, we draw 1 box next to John to represent the \$25 spent by him and draw 1 box next to Max to represent the \$18 spent by him.

Step 3: Next, we draw a bracket on the top to represent the amount of money each of them had before the spending (denoted by "?").

From the model,

1 unit -----------> \$25 - \$18 = \$7

2 units ----------> 2 x \$7 = \$14

\$14 + \$25 = \$39

Therefore, each boy had \$39 at first.

Go To Top - Model Method - Questions and Answers

If you want us to send you our future Modelmatics eZine that would inform you on the latest article in Teach Kids Math By Model Method, do an easy sign-up below. Subscription is FREE!

 Enter your E-mail Address Here Enter your Name Here Then Don't worry — your e-mail address is totally secure. I promise to use it only to send you ModelMatics.