24 boys finished a piece of work in 18 days and after 2 day 8 more boys joining the work
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1 boys do this work in
24 × 18 = 432 days = ( 432 unit work)
but
24 boys do together two days work done
24 × 2 = 48 unit work done
remaining 432 - 48 = 384 unit
join 8 boys
total boys = 24 + 8 = 32
number of days to finish remaining work
384/32 = 12 days
24 × 18 = 432 days = ( 432 unit work)
but
24 boys do together two days work done
24 × 2 = 48 unit work done
remaining 432 - 48 = 384 unit
join 8 boys
total boys = 24 + 8 = 32
number of days to finish remaining work
384/32 = 12 days
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