Katarina is a botanist studying the production of pears by two types of pear trees. She noticed that type A trees produced 20 percent more pears than type B trees did. Based on Katarina's observation, if the type A trees produced 144 pears, how many pears did the type B trees produce?
The Question tells us that that Type A produces 20% more pears than Type B. This means that Type A produces 120% of what Type B produces.
So if 144 is 120% then we can do:
144 ÷ 12/10 (we do this to find what 10/10 or 100% would be which is what Type B is)
144 x 10/12
Therefore, Tree B produces 120 pears.
Hope that helps!!! :)