To calculate the income tax deducted on earnings of 1000 with a tax rate of 25%, you can use the following formula:
\[ \text{Income Tax} = \text{Earnings} \times \text{Tax Rate} \]
Substituting the values:
\[ \text{Income Tax} = 1000 \times 0.25 = 250 \]
So, the income tax deducted would be 250.