A person could save 10 of his income But 2 years later when his income increased by 20 he could save...........

Quantitative Aptitude (CDS) Profit and loss

A person could save 10% of his income. But 2 years later, when his income increased by 20%, he could save the same amount only as before. By how

much percentage has his expenditure increased?

$22\frac{2}{3}\%$

$23\frac{1}{3}\%$

$24\frac{2}{9}\%$

$25\frac{2}{9}\%$

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Explanation:

Let income be Rs. 100
Expenditure amount = 100×90/100= Rs. 90
Now, income increased by 20% = 100×120/100=Rs. 120
Expenditure amount = (120 – 10) = Rs. 110
Increase in expenditure = 110 – 90 = Rs. 20
Increase in% of expenditure =20/90×100=200/9
$=\, 22\frac{2}{9}\%$