A man a woman and a boy can do a work in 20,30 and 60 days. hoe many boys must assist one man and one woman to complete the work in 2 days
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2 boys for 1 man and 3 boys for 1 woman for completing the work in 2 days.
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their work rate:-
man=20
woman=30
boy=60
one man,woman=30-20
10days
1 boy=60days-30-20 days
=10 boys
man=20
woman=30
boy=60
one man,woman=30-20
10days
1 boy=60days-30-20 days
=10 boys
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