Question

A boy and a girl can do work in 80 and 120 days .Then three boys and three girls will complete the work in how many days​

Answer 1

Answer:

1 boy can do work = 80

1 girl can do work = 120

then,

3 boys will complete work in = 3÷80 days

$80 \div 3 \: or \: 26 \frac{2}{3}$

3 girls will complete work in = 3÷120 days

$40 \: days$

Ans ... therefore, 3 boys will complete a work in 80/3

and girls will complete a work in 40 days .

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