Aptitude - Time and Work - Discussion

Discussion Forum : Time and Work - General Questions (Q.No. 5)
5.
A alone can do a piece of work in 6 days and B alone in 8 days. A and B undertook to do it for Rs. 3200. With the help of C, they completed the work in 3 days. How much is to be paid to C?
Rs. 375
Rs. 400
Rs. 600
Rs. 800
Answer: Option
Explanation:

C's 1 day's work = 1 - 1 + 1 = 1 - 7 = 1 .
3 6 8 3 24 24

A's wages : B's wages : C's wages = 1 : 1 : 1 = 4 : 3 : 1.
6 8 24

C's share (for 3 days) = Rs. 3 x 1 x 3200 = Rs. 400.
24

Discussion:
185 comments Page 7 of 19.

The Pope said:   9 years ago
Thanks for the given Explaination.

Vishwa said:   9 years ago
No! @Priyanka.

It's the total amount given for total work done by all 3.

Total work is 8parts, out of which c can complete only 1 part hence C can get 1/8 Part of the total amount.

i.e (1/8) *3200=400.

Priyanka said:   9 years ago
Is 3200 is wage per person per day?

Ajinkya said:   9 years ago
A's 1 days work=1/6.A worked for 3 days.
So A's income will be 3200*3/6=1600 RS.
B work for 3 days = 3/8,
B's income =3/8*3200 = 1200,
So C's income= 3200-(A+B income),
= 3200-2800,
= 400.

Kartik Choudhary said:   9 years ago
Please make me understand this.

We calculated ratio 4:3:1.
But how's the last step is done?
How we calculated C's share. Please elaborate it.

Abhishek Giri said:   9 years ago
@ALL.

3 days work.
A completes in 6 days so he should get half of Rs.3200 i.e., 1600.
B's completes in 8 days means half work in 4 days. that means he has worked 1 day less than A
3200/2 = 1600.
1600/4 (B half days work) = Rs. 400 for 1-day work.
so 1600-400 = Rs .1200 (B will get).
Remaining C.
1600+1200 = 2800.
3200-2800 = 400(C will get).

SAI SRI said:   9 years ago
A's SHARE =3/6*3200 = 1600.
B's SHARE =3/8*3200 = 1200.

TOTAL A & B =1600+1200 = 2800.
C's SHARE =3200-2800 = 400.

Shri said:   9 years ago
It forms equation. Just simplify you'll get answer @Shyam.

HimiD said:   9 years ago
We see that C can finish it in 3 days. So, C works harder. If we divide Rs 3200 by 3 its Rs 1066.67. As C works harder C should get more than Rs. 1066.67. So, why he is getting Rs. 400?

Shyam said:   9 years ago
A bullocks & B tractors can shield a field in 8 days. If we halve the bullocks and double the tractors then it takes 5 days. In how many days A bullocks can shield the field?

Please answer this question.


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