Aptitude - Simplification - Discussion

Given,

Work 8 Hrs = 2.40/h.
OT 8+ Hrs = 3.20.

Now 432 for 4 Work.
1 Work = 5 Days
4 Work = 20 Days ( 20 Days for 8 hrs is 20 * 8 =160 hrs).

1 Hr = 2.40 (160 hrs is 160 * 2.4 = 384) Now we have 384 Rs and we need to calculate how much short are we from 432.Rs. So, we will subtract 432 - 384 = 48.Rs which is overtime
For overtime, we calculate 3.20 for 1 hr which is given so (48/3.20 = 15Hrs)
So 160 hrs for the normal working hours paid plus 15 hrs of overtime is 175 hrs.

So, A = 175.

The total working days =Total working hours in a week * 4 weeks
= 5 * 4 * 8 = 160 hours
Total wage for 160 hours = 160 * 2.4 = 384 Rs.
Given income - total income = 432 - 384 = 48
wage / hour during overtime => 3.2 Rs.
48/3.2 = 480/32 = 60/4 = 15
So in all he worked 25 hours overtime and 160 hours
Therefore,
1 6 0
+ 1 5
------
1 7 5
Therefore the total hours = 175 hours.

Total days=7
Present days=5
Work hours=5

Regular hours=8hr/day *20 days=160 hours

So 2.40*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

Overtime working hours is Rs.48/3.20= 15 hours.

Total worked hours of a man is 160+15=175 hours.

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

Amount gathered in 4 weeks ( 5 working day each) = (2.4*8)*5*4 = Rs. 384.
Time did in normal shift = 384/2.4 = 160 hours.

Amount remaining = 432-384 = 48.

Overtime did = 48/3.2 = 15 hours.
Total Time = 160+15 = 175 hours.

As @Kachani said it was never mentioned like he worked on all his working hours. Suppose if he was off for one day and worked 16 hours next day (regular 8 hour shift and 8 hours overtime)?

If the total hrs work 175, then 175 * 3.20 ( Per hour) = 512.
How it comes to 432?

The total money the person got.
I think the answer is of the total work is 135.
135 * 3.20 = 432.

But it is never mentioned that the man has worked all his regular working hours right? So how can we assume 160*2.40 ?

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

= 160*2.40 = 384-432 = 48/3.20 = 15.
= 160+15.
= 175.

You are right @Ashish, they have not mentioned 432 is including overtime.