Question

the ratio of the expenditure to the saving of a family is 7:3 . Find the income if the expenditure is Rs. 6300

Answer 1

7x=6300(let the ratio of expenditure be 7x)
X=900
then 3x=900×3=2700(savings)
total income =6300+2700=9000

Answer 2

ratio of expenditure =7 x
7x=6300
X=6300/7
X=900
ratio of saving =3x
=3×900
2700
total income = total expenditure +total savings
total income = 6300+2700=9000
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