Ana baked 82 muffins for her school's bake sale. She put 4 muffins aside for her friends and placed the remaining muffins on plates to sell. Ana placed 6 muffins on each plate. How many plates did she use?

Ana used 13 plates

Step-by-step explanation:

Total muffins baked=82

She placed 4 aside for her friends and sell the remaining

Total sellable muffins = 82-4

=78 muffins

Ana placed 6 muffins on each plate

How much plate does she needs?

=Total sellable muffins / no. per plate

= 78/6

= 13 plates

Ana used 13 plates