I am having trouble figuring out how to find an indifferent tax rate for the following problem.

Assume that a taxpayer can choose when he is to receive $10,000 of fully taxable income. If the taxpayer receives the income at the end of Year 1, he will receive exactly $10,000. If he delays receipt of the income until the end of Year 2, the amount will grow to $11,000. If the taxpayer takes the money at the end of Year 1, he can invest the proceeds and earn a pre- tax return of 10 percent over the next year. At what pre- tax rate of return, will the taxpayer be indifferent to taking the money in Year 1 and Year 2?