6 labourers can build a wall in 10 days. How many labourers of double the efficiency are needed to build 3 such walls in 5 days
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Hello friend, I want you to understand this problem in a very logical way. Let get started
see, if 6 labourers can build a wall in 10 days then 1 labour will take 60 days. now understand if efficiency of labour get doubled then the same wall can be build in 30 days. So there's 3 wall to be build so it will take 90 days by a single labour. So in order to build these 3 wall in 5 days, the no of labour required is 90/5=18 days.
Hence it will take 18 days to build 3 wall in 5 days. Hope you understand it in a very easy way. Feel free to ask any doubt.
see, if 6 labourers can build a wall in 10 days then 1 labour will take 60 days. now understand if efficiency of labour get doubled then the same wall can be build in 30 days. So there's 3 wall to be build so it will take 90 days by a single labour. So in order to build these 3 wall in 5 days, the no of labour required is 90/5=18 days.
Hence it will take 18 days to build 3 wall in 5 days. Hope you understand it in a very easy way. Feel free to ask any doubt.
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