An individual has a gross income of 1000. The average tax rate is 20%. The tax benefit is 100. Consumption is 60% of disposable income. How much is this individual's saving?

1. 288
2. 360
3. 540
4. 320

For a national economy we observe the following. Public debt at the beginning of the period is 60 billion. The government runs a primary deficit of 20. The interest rate is 5%. How much is the public debt at the end of the period?

1. 63
2. 80
3. 84
4. 83