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A man earns $x$% on the first $2000$ rupees and $y$% on the rest of his income. If he earns Rs $700$ from Rs $4000$ and Rs $900$ from Rs $5000$ of income, find $x$.

1. $20$
2. $15$
3. $35$
4. None of these

1
534 views
2
449 views
3
296 views
4
254 views