Ratio Word Problem

                    Lesson 1

Problem:                   If the ratio of desktop computers to palmtop is 3 to 5 and there are total

24 computers, how many of them are desktop computers?

Solution                    See the problem carefully

Step 1:  

Solution Total number of desktop computers:

Step 2:                                   

3 out of 8 are desktop:   3/8 × 24 = 9

                                                            Solution                    The answer is: 9

 Step 3:                                                                      

 Complete   

                                                            Try two practice problems:  

Do the following:

A.	If the ratio of pens to pencils is 3 to 5 and there are total 40 items, how many of them are pens?
B.	Two numbers are in a ratio of 2:7.Their sum is 45. Find the largest number.

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