In a regular week, there are 5 working days and for each day, the working hours are 8. A man gets Rs. 2.30 per hour for regular work and Rs. 3.20 per hours for overtime. If he earns Rs. 432 in 4 weeks, then how many hours does he work for ?  Choose the correct choice from the following choices
A) 160	B) 175	C) 180	D) 200	E) 210
Suppose the man works overtime for x hours.   Now, working hours in 4 weeks = (5 x 8 x 4) = 160.   160 x 2.30 + X x 3.20 = 432   X = 20.   Hence, total hours of work = (160 + 20)= 
<gadget id="calculator">(160 + 20)</gadget>
<output>180</output>
180.   answer :180
<result>C</result>
In a regular week, there are 5 working days and for each day, the working hours are 8. A man gets Rs. 2.30 per hour for regular work and Rs. 3.20 per hours for overtime. If he earns Rs. 432 in 4 weeks, then how many hours does he work for ?