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 9 of 21.

Anamika said:   9 years ago
Hi everyone I didn't understand this.

So please anyone explain it step by step for me.

NIRJARA said:   9 years ago
Thanks a lot @Siddhu.

Gourav Singh said:   9 years ago
14 * 10/35 = 4days
8 + 6 = 14.

Nagendran Periyasamy said:   9 years ago
Can anyone explain that 1/100 and 2/200?

Sachin said:   9 years ago
Why it takes 1/10 and 1/2 respectively? Please explain me.

Alia said:   9 years ago
@Atul1487.

Your method was awesome! I liked it well, thanks for that.

Jacqueline said:   9 years ago
@Pravas.

How did you get 8m=16b/ I did not understand please can you explain it clearly?

Thanks.

Ash said:   9 years ago
I am not getting the solution.

Will anyone solve the equation for me?

Bhagi said:   9 years ago
Can anyone tell formula for this question?

Deepika said:   9 years ago
Thanks @Pravas.


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