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Find the relationship between a man-day and a boy day
12 man-days + 12 boy-days = 8 man-days + 20 boy days
12 md - 8 md = 20bd - 12 bd
4md = 8bd
divide both sides by 4d
m = 2b (1 man = 2 boys)
:
Find how many man-days required to do the job, replace 2 b with 1 m
3(4 m + 2m) = 18 man days to do the job or 36 boy days to do the job
:
How long would it take 1 boy to do it? 36 days
How long would it take 1 man to do it? 18 days
Answered by
4
4 Men And 4 Boys Take 3 days
2 Men And 5 Boys Take 4 Days
Need To find,
If 1 Boy Do it in 36days.
If 1 Man do it so, it takes 17
days
I am not ❌ Sure
2 Men And 5 Boys Take 4 Days
Need To find,
If 1 Boy Do it in 36days.
If 1 Man do it so, it takes 17
days
I am not ❌ Sure
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