Question

the ratio of a family's expenditure to it's savings is3:5. if the income of the family is 64,000 per month ,what is the family's saving?
plz ans this question (ans=40,000)

Answer 1

Hello there. There are 3 ways (that come to my mind) to solve this.

1st way- (lengthiest)

given ratio= expenditure : savings= 3:5
sum of the terms of the given ratio= 3+5= 8
Total income of the family= 64,000 (/month)
therefore, expenditure of the family
=
$\frac{3}{8} \times 64000 \\ = 3 \times 8000 \\ = 24000$
therefore, savings of the family
=
$\frac{5}{8} \times 64000 \\ = 5 \times 8000 \\ = 40000$

2nd way- (lengthy but different)

given ratio= expenditure : savings= 3:5
sum of the terms of the given ratio= 3+5= 8
Total income of the family= 64,000 (/month)
therefore, expenditure of the family
=
$\frac{3}{8} \times 64000 \\ = 3 \times 8000 \\ = 24000$

therefore, savings of the family
= 64,000-24,000= 40,000

3rd way- (short cut)

given ratio= expenditure : savings= 3:5
sum of the terms of the given ratio= 3+5= 8
Total income of the family= 64,000 (/month)
therefore, savings of the family
=
$\frac{5}{8} \times 64000 \\ = 5 \times 8000 \\ = 40000$

Ans (in all the ways)- The family's monthly savings is 40,000.

Answer 2

Answer:

40000 is the answer this is the simplest way if calculation