Question

29. (1) One man's 1 days work ( =frac{1}{88} )
One woman's 1 day work ( =frac{1}{176} )
[
begin{array}{l}
text { One boy's } 1 text { day work }=frac{1}{264}
text { (One man }+text { One woman }+text { One boy)'s }
begin{aligned}
1 text { day work } &=frac{1}{88}+frac{1}{176}+frac{1}{264}
&=frac{6+3+2}{528}=frac{11}{528}
end{aligned}
end{array}
]
So, one man, one woman and one boy can complete the whole work in
[
=frac{528}{11} mathrm{days}=48 text { days }
]

# 29. One man or two women or three boys can do a piece of work in 88 days. One man, one woman and one boy will do it in (2) 20 days (1) 48 days (4) 24 days (3) 44 days

Solution