Aptitude - Simplification - Discussion

Discussion Forum : Simplification - General Questions (Q.No. 11)
11.
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 ?
160
175
180
195
Answer: Option
Explanation:

Suppose the man works overtime for x hours.

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

160 x 2.40 + x x 3.20 = 432

3.20x = 432 - 384 = 48

x = 15.

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

Discussion:
17 comments Page 1 of 2.

Cake said:   9 years ago
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.
(7)

Safique said:   3 years ago
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.
(3)

Sapna said:   1 decade ago
But how can we find it faster this calculation takes lots of time.
(2)

POOLA VENKATESH said:   2 years ago
Anyone, please explain this simply.
(1)

Anshu said:   1 decade ago
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.
(1)

Mohana said:   8 years ago
It's very important.
(1)

Arshad said:   1 decade ago
Now, working hours in 4 weeks = (5 x 8 x 4) = 160.

= 160*2.40 = 384-432 = 48/3.20 = 15.
= 160+15.
= 175.
(1)

Ragavardhini said:   1 decade ago
I am unable to understand the concept, please explain it clearly.
(1)

Isha said:   1 decade ago
You are right @Ashish, they have not mentioned 432 is including overtime.

Aisha said:   9 years ago
How can we find it easily?


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