Question

Shelly compared the number of oak trees to the number of maple trees as a part of a study about hardwood trees in a woodlot. She counted 9 maple trees to every 5 oak trees. Later in year there was a bug problem and many trees died. New trees were planted to make sure there was same number of trees as before the bug problem. The new ratio of the number of maple trees to the number of oak trees is 3:11. After planting new trees, there were 132 oak trees. How many more maple trees were in the woodlot before the bug problem than after the bug problem? Explain

Answer 1

There were 72 more maple trees before the bug problem then after because there was 108 maple trees before the bug problem and 36 maple trees after the bug problem