Question

# Monthly average expenditure of a family with $$4$$ members is $$Rs\ 2,800$$. Find the monthly average expenditure of a family with only $$3$$ members.

Solution

## Monthly expenditure of a family with $$4$$ members $$= Rs.2800$$Monthly expenditure of a family with $$1$$ member $$= \cfrac{2800}{4} = Rs. 700$$Therefore,Monthly expenditure of a family with $$3$$ members $$= 700 \times 3 = Rs. 2100$$Maths

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