Aptitude - Time and Work - Discussion

Discussion Forum : Time and Work - General Questions (Q.No. 6)
6.
If 6 men and 8 boys can do a piece of work in 10 days while 26 men and 48 boys can do the same in 2 days, the time taken by 15 men and 20 boys in doing the same type of work will be:
4 days
5 days
6 days
7 days
Answer: Option
Explanation:

Let 1 man's 1 day's work = x and 1 boy's 1 day's work = y.

Then, 6x + 8y = 1 and 26x + 48y = 1 .
10 2

Solving these two equations, we get : x = 1 and y = 1 .
100 200

(15 men + 20 boy)'s 1 day's work = 15 + 20 = 1 .
100 200 4

15 men and 20 boys can do the work in 4 days.

Discussion:
202 comments Page 18 of 21.

Devi said:   8 years ago
Can you please explain in LCM method?

Jigme Wangchuk said:   5 years ago
Can someone explain it in LCM method?
(6)

Prakash said:   1 decade ago
Why Multiply in 1st equation into 6.

Ujjwal said:   9 years ago
How we got 1/10?

Please explain it.

Suraj said:   8 years ago
Thanks for explaining the solution.

Anup S. said:   8 years ago
@Siddharth.

Very well explained.

Waseem said:   4 years ago
Thanks for explaining this @Zoya.
(4)

Anton said:   9 years ago
How to get 15/100 + 20/200 = 4?

Mounika said:   8 years ago
Very well explained @Siddharth.

AJAY LAKUM said:   1 decade ago
Thanks sudha good explanation.


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