Peter is about to invest $$5000$ at the end of every year for $20$ years into a saving account paying $10\%$ a year. How much he will have in the account at the end of year $10?$

Question $1$ options:

If Peter's goal is to save up $$600,000$ at the end of the $20$th year for his retirement, he needs to save ~$$20,476$ every year.

The result is $$79,687$ at the end of $10$th year.

Instead of investing at the end pf every year, if Peter invests at the beginning of each year, he would have less money in the end.

All are correct.

Only two of the three answers are correct.