Mary earns $20 washing cars and $40 walking dogs each month. If she puts half of that money away each month how long would it take her to save $150?
Each month she makes 20+40=$
<gadget id="calculator">20+40</gadget>
<output>60</output>
60.
Every month she saves 60/2=$
<gadget id="calculator">60/2</gadget>
<output>30</output>
30.
To save $150 it will take her 150/30=
<gadget id="calculator">150/30</gadget>
<output>5</output>
5 months.

<result>5</result>