Aptitude - Chain Rule - Discussion

Discussion Forum : Chain Rule - General Questions (Q.No. 6)
6.
A man completes of a job in 10 days. At this rate, how many more days will it takes him to finish the job?
5
6
7
7 1
2
Answer: Option
Explanation:

Work done = 5
8

Balance work = 1 - 5 = 3
8 8

Let the required number of days be x.

Then, 5 : 3 = :: 10 : x     5 x x = 3 x 10
8 8 8 8

x = 3 x 10 x 8
8 5

x = 6.

Discussion:
36 comments Page 2 of 4.

Shahid said:   1 decade ago
It can be solved this way also
To complete 5/8 part --- 10 days
To complete 8/8 parts ---- ? days

Solving, {(8/8) x 10}/{5/8} = 16 days

Therefore remaining days = 160- 10 = 6 days

Sourabh said:   1 decade ago
@bhadra
hey nice explaination, thanks it helped me alot

Mithilesh kumar said:   1 decade ago
In 1 day (5/8)/10 = 0.0625 part work is done.

Hence,

No.of days taken to complete this = 1/0.0625 = 16.

Remaining days = 16-10 = 6.

Satish said:   1 decade ago
5/8 job = 10 days.

1 job = 10*8/5 = 16.

Remaining days = 16-10 = 6.

Sonu said:   1 decade ago
Job Day(s).
5/8 10
1/8 10/5=2
8/8
(i.e.=1) 2X8=16

Remaining Days = 16-10 = 6.

Ruk said:   1 decade ago
From 8/8 of total work, 5/8 part done in 10 days.

For one part he took 2 days.
10/5 = 2.

Then balance 3/8 part he will take.
3x2 days = 6 days.

Sankar said:   1 decade ago
A's 10 days work 5/8.

Then A's one day 5/10 = 0.50.

Remaining work 3/8. So 2 days 1 work over.

Therefore remaining work is 3*2 = 6 days remaining over.

Gaurav Pant said:   1 decade ago
5/8 work completed in 10 days.

Total work will complete = 10*(8/5) = 80/5 = 16.

Therefore remaining work (1-5/8) done on = 16-10 days = 6 days.

Kathik said:   10 years ago
Given that 5/8 (job) = 10 days.

Then for full job completion take:

1(job) = 10(8/5).

= 16 days.

So in question asked how many remaining days to finish the job.

So Total days - Given days.

= 16 - 10 = 6 days.

Bindu brisk said:   9 years ago
It's so simple:

Total of 8 parts 5 parts done in 10 days:

Remaining 3 parts in 6 days:

1 part = 2 days.


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