Question

sameera sent90% of income and donated 3% for socially useful causes if she left withRs 1750 at the end of the month what was her actual income

Answer 1

100-93=7

7% of x=1750

7/100x = 1750

x=1750*100/7

x=175000/7

x=25000

Answer 2

ANSWER:

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Let Sameera's monthly income be Rs x.

She spent 90% of her income.

Donated 3% for social causes.

Therefore,

She spent (90+3)%=93% of her income i.e.

$\\ she \: spent \: Rs \: \frac{93x}{100}$

Now as we know,

$\\ savings = income - expenditure \\ \\ 1750 = x - \frac{93x}{100} \\ \\ 1750 \times 100 = 100 \times - 93x.......(multiplying \: both \: the \: sides \: by \: 100)\\ \\ 1750 \times 100 = 7x \\ \\ 7x = 1750 \times 100 \\ \\ x = \frac{1750 \times 100}{7} \\ \\ x = 250 \times 100 \\ \\ x = 25000$

Therefore,

Sameera's monthly income =x=Rs 25000.