A builder works for 4 weeks every month and for 6 days every week. If he gets paid $50 every day, how much does he earn if he works for a year?
The builder works for 6 days every week and works for 4 weeks every month so he works for 6 days/week * 4 weeks/month = 
<gadget id="calculator">6*4</gadget>
<output>24</output>
24 days/month.
If he earns $50 every day he then earns $50/day * 24 days/month = $
<gadget id="calculator">50*24</gadget>
<output>1_200</output>
1200/month.
A year is equal to 12 months so every year he earns $1200/month * 12 months/year = $
<gadget id="calculator">1200*12</gadget>
<output>14_400</output>
14400.

<result>14_400</result>