Diane bought twenty more apples than Cecile. If Cecile bought 15 apples, how many apples did they buy altogether?
Diane bought 15 + 20 = 
<gadget id="calculator">15+20</gadget>
<output>35</output>
35 apples.
Therefore, they bought 15 + 35 = 
<gadget id="calculator">15+35</gadget>
<output>50</output>
50 apples altogether.

<result>50</result>