A grandfather is giving two options to his grandson either take an investment of $100,000 today and invest it at the rate of 12% yearly OR take $175,000 after four years. Consider yourself as a...

A grandfather is giving two options to his grandson either take an investment of $100,000 today and invest it at the rate of 12% yearly OR take $175,000 after four years. Consider yourself as a financial advisor and advise grandson in detail that which option he must choose.

If the rate of investment changes to 15% what advice you will make to him