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Nagraj could save 10% of his income. ...

Nagraj could save 10% of his income. But 2 years later, when his income increased by 20% they could save the same amount only as before. By how much percentage has expenditure increased? `22 2/9%` b. `23 1/3%` c. `24 2/9%` d. `25 2/9%`

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