Question

A person who spends 66(2/3) % of his income is able to save Rs. 1200 per month. His monthly expenses (in Rs.) are:

Answer 1

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Let his income be Rs.x
Expenditure = 66*2/3% of x
Saving = 33*1/3% of x 
A/q, 
33*1/3% of x = Rs.1200
x = 1200*100*3/100 = 3600
So his monthly expenses = 66*2/3% of 3600 = Rs. 2400

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Answer 2

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Let his income be Rs x.

Expenditure = 66*2/3% of x.

Saving = 33*1/3% of x.

ATQ,

33*1/3% of x = Rs 1200

x = 1200*100*3/100 / 100 = 3600.

So, his monthly expenses = 66*2/3 of 3600 = Rs 2400.

Thanks☺️☺️☺️☺️☺️☺️