Question

The ratio of income to the expenditure of a family is 9:7 find the saving ,if the income is rupees 18000

Answer 1

Answer:

$income |expenditure| \\ = 9 \: |7| \\ income = 18000 \\ therefore \: \: \: 9x = 18000 \\ x \: = 2000$

$expediture \: = \: 7x \: = 7 \times 2000 = 14000 \\ savings \: = \: income \: - \: expenditure \: \\ = 18000 - 14000 \\ = 4000$

Income = Rs. 4000

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Answer 2

Step-by-step explanation:

$ratio = 9:7$

$so \: 9x = 18000 \\ = x = \frac{18000}{9} = 2000$

$expenditure = 7(2000) = 14000$

$savings = 18000 - 14000 = 4000$