Catherina works 5 hours per day on Monday, Wednesday and Friday, and 10 hours per day on Tuesday and Thursday. She does not work on Saturday and Sunday. She earns $420 per week. How much does she earn in dollars per hour?	Choose the correct choice from the following:	A) 14	B) 15	C) 16	D) 12	E) 18
So, she works 15 hours in 3 days   So, she works 20 hours in 2 days   So in a week she works 35 hours ( 15 + 20 ) and earns $420   So, Hourly wage is  420/35= 
<gadget id="calculator"> 420/35</gadget>
<output>12</output>
&gt; 12   Hence answer will be (12) 12
<result>D</result>
Catherina works 5 hours per day on Monday, Wednesday and Friday, and 10 hours per day on Tuesday and Thursday. She does not work on Saturday and Sunday. She earns $420 per week. How much does she earn in dollars per hour?