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 ?
[A].
160
[B].
175
[C].
180
[D].
195
Answer: Option B
Explanation:
Suppose the man works overtime for x hours.
Now, working hours in 4 weeks = (5 x 8 x 4) = 160.
Regular hours=8hr/day *20 days=160 hours
so2.40*160=384(so regular hours he worked is 160 hours)
Remaining amount he earned is Rs.48.
so overtime earning per hour is Rs.3.20
Therefore overtime working hours is Rs.48/3.20= 15 hours
Therefore Total worked hours of a man is 160+15=175 hours
Naddy said:
(Sat, Jan 15, 2011 08:04:50 AM)
20 days =5 days per week*4 weeks
Kachani said:
(Mon, Aug 22, 2011 10:32:25 PM)
But it is never mentioned that the man has worked all his regular working hours right? So how can we assume 160*2.40 ?
160 x 2.40 + x x 3.20 = 432
3.20x = 432 - 384 = 48