It costs $3 for the first 1/3 hour to use the laundry machine at the Laundromat. After the first ¼ hour it costs $12 per hour. If a certain customer uses the laundry machine for 2 hours and 35 minutes, how much will it cost him? Choose the correct choice from the following answers:
A) $30.	B) $31	C) $32.	D) $33.	E) $34.
2 hrs 35 min = 155 min   First 20 min ------&gt; $3   Time left is 135 min...   Now, 60 min costs $ 12   1 min costs $ 12/60   155 min costs $  12/60*155= 
<gadget id="calculator"> 12/60*155</gadget>
<output>31</output>
&gt; $ 31   So, Total cost will be $31 + $3 =&gt; $ 34   Hence answer will be $32.31 +  3= 
<gadget id="calculator">31 +  3</gadget>
<output>34</output>
&gt; $ 34   Hence answer will be $32.
<result>C</result>
It costs $3 for the first 1/3 hour to use the laundry machine at the Laundromat. After the first ¼ hour it costs $12 per hour. If a certain customer uses the laundry machine for 2 hours and 35 minutes, how much will it cost him?