please help me solve this question...............................

You won the lottery and can receive either (1) $65,000 today, or (2) $10,000 one year from today plus $15,000 two years from today plus $45,000 three years from today. You plan to use the money to pay for your child's college education in 15 years. What level of discount rate makes you indifferent between the two options? (Hint: IRR calculation) O 6.81% 7% 5% 3.02% Given the information the same to Q17, what is the standard deviation of the common stock A? Stock A's Return -30% State of the Probability Economy Recession 10% Below Average 15% Average 50% Above Average 15% Boom 10% -2% 10% 18% 40% 2.78% 16.98% O 23.76% O 16.69%