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In a regular week, there are 5 working days and for each day, the working hours are 8. A man gets Rs. 2.40 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 ?

Correct Answer: 175

Explanation:

Suppose the man works overtime for x hours.


Now, working hours in 4 weeks = (5 x 8 x 4) = 160.


Therefore,  160 * 2.40 + x * 3.20 = 432


 => 3.20x = 432 - 384 = 48


 => x = 15.


 Hence, total hours of work = (160 + 15) = 175.


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