A man earns x on the first Rs 2 000 and y on the rest of his income If he earns Rs 700 from Rs 4 000...........

Quant (SSC) Percentage

A man earns x% on the first Rs. 2,000 and y% on the rest of his income. If he earns Rs. 700 from Rs. 4,000 and Rs. 900 from Rs. 5,000 of income, find x%.

20%

25%

15%

Can't be determined

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Explanation:

As per the given information, two equations can be written
2000(x/100) + 2000(y/100) = 700 ......i
2000(x/100) + 3000(y/100) = 900 ......ii
The equations can be simplified to
x + y = 35
and 2x + 3y = 90.
After Solving these equation, we get
x = 15%