Question

14 masons can build a wall 12 metres high in 12 days. how many masons will be needed to build a wall 120 metre high in 7 days?"​

Answer 1

Question :-

14 masons can build a wall 12 m high in 12 days. How many masons will be needed to build a wall 120 metre high in 7 days ?

To Find :-

No. of masons

Answer :-

12 m wall in 12 days can be built by 14 masons

1 m wall in 12 days will be built by 14/12 masons

1 m wall in 1 day can be built by 14×12/12 masons

120m wall in 1 day can be built by 14×120 masons

120m wall in 7 days can be built by 14×120/7 masons = 240 masons

∴ 240 masons will be required