Question

roja earned rs 18000 per month she utilized her salary in the ratio 2:1:3 for education ,saving and other expences respectively express her usage of income in percentage​

Answer 1

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♠ Roja earned rs 18000 per month she utilized her salary in the ratio 2:1:3 for education ,saving and other expences respectively express her usage of income in percentage

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Amount of Salary = Rs 18,000

(i) Total number of parts of salary = 2 + 1 + 3 = 6

Salary is divided into 3 portions as 2/6, 1/6 and 3/6.

$\rm \: Portion \: of \: salary \: used \: for \: education$

$\bf \dashrightarrow \frac{2}{6}$

Salary used for education =

$\bf \dashrightarrow\frac{2}{6} \times 18000 \\ \\ \bf\dashrightarrow 6000$

Percentage for Education =

$\bf\dashrightarrow \frac{6000}{18000} \times 100 \\ \\ \bf \dashrightarrow33.33\%$

(ii) Usage of salary for savings =

$\dashrightarrow \bf\frac{1}{6} \times 18,000 \\ \\ \bf \dashrightarrow Rs \: 3,000$

Percentage for savings =

$\dashrightarrow \bf \frac{3000}{18000} \times 100 \\ \\ \bf \dashrightarrow 16.67 \: \%$

(iii) Usage of salary for other expenses=

$\bf \dashrightarrow \frac{3}{6} \times 18,000 \\ \\ \bf \dashrightarrow Rs \: 9,000$

Percentage for other expenses $\bf \dashrightarrow \frac{9000}{18000} \times 100 \\ \\ \bf \dashrightarrow 50 \%$

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