Mrs. Velasco plans to arrange 27 boys and 18 girls in rows for her seat plan. She wishes to arrange them in such a way that only boys or girls will be there in a row. Find the common number of students that could be arranged in a row.
Solution to the problem :

1) Using the four-step plan (Routine)

a. Understand
Know what is asked_______
Know what is/are given____

b. plan
Determine the operation/method/procedures to be used _________

c. solve
Use the method to solve the problems_______

d. Check and look back:_____
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