Mr. Jamison deposited $100 into a new savings account on January 1. On the first day of each month thereafter, he deposited three times the amount he deposited in the previous month. On June 15 of the same year, the total amount Mr. Jamison has deposited is
He deposited $300 in February, $900 in March, 2,700 in April, 8,100 in May, and 24,300 in June. All togther he has deposited 36,300. If he deposited three times more than he did each previous month.