Question

In a camp, there are provisions for 400 people for 23 days. If 60 more people join the camp find the number of days the provision will last
How to do it in unitary method?

Answer 1

Answer:

In a camp, there are provisions for 400 people for 23 days

let the no. days be x

people-----------400-------460

provisions------23----------x

they are inversely proportional

=>400*23=460*x

=>x=(400*23)/460

=>x=25

and unitary method

provisions for 400 people for 23 days

provision for 1 people = 23/400

provision for 460 people = 23/400*460

=> 23*23/25

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