1. Sixteen men can complete a work in fifteen days, twenty-four children can do the same work in twenty days. In how many days will eight men and eight children, complete the same work ?
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By: anil on 05 May 2019 01.53 am
16 men can complete a work in 15 days 1 man can complete the work in (16*15) days 24 children can do the same work in 20 days
1 child can complete the work in (24*20) days let x be the no.of days taken by 8 men and 8 children to complete the work, then 1/x = 8/(16*15) + 8/(24*20) 1/x = 1/30 + 1/60 1/x = 3/60 x = 20 answer is option D.
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1 child can complete the work in (24*20) days let x be the no.of days taken by 8 men and 8 children to complete the work, then 1/x = 8/(16*15) + 8/(24*20) 1/x = 1/30 + 1/60 1/x = 3/60 x = 20 answer is option D.