Four men and six boys can do a piece of work in 2 days where as one man and three boys can do the same work in 6 days. In how many days can one man and one boy complete the same work?
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Step-by-step explanation:
3 men + 2 boys complete work in 6 days.
=> 6 men + 4 boys can complete in 3 days.
We further know 5 men + 7 boys can complete work in 3 days.
=> 1 man = 3 boys
=> 11 boys can complete work in 6 days.
Now 2 men and 5 boys means 11 boys.
=> They complete work in 6 days.
:-)
6 days
18m+12b can do in 1day
15m+21b can do in 1day
3m=9 b or 1m=3b
(18×3)+12 boys can do in 1 day or
66 boys do it in 1 day
1boy’s 1 day's work=1/66
2m or (2×3 boys) +5 boys 1 day's work=11/66
So 11 boys can do that work in=6 days
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