3. Taxpayer X, single, has taxable income of $190,000. He had the following capital asset transactions: Gain from the sale of a stamp collection (held for 10 years) Gain from the sale of an investment in land (held for 4 years) Gain from the sale of stock investment (held for 8 months) How to calculate the taxpayer's tax on these gains? $30,000 10,000 4,000 4. Taxpayer Y, single, has taxable income of $137,800, which includes the following gains/losses ST losses ST gains LT Losses LT gains What is the taxpayer' tax? -7500 2500 -10000 65000