Answer: (1) 120,675
(2) 60,450
Explanation:
(1) Nominal GDP, year 2 ($) = Sum of (Year 2 price × Year 2 quantity)
                       = 150 × 4.50 + 1,200 × 100
                       = 675 + 120,000
                      = 120,675
(2) Real GDP, year 2 ($) = Sum of (Year 1 price x Year 2 quantity)
                    = 3 × 150 + 50 × 1200
                    = 450 + 60,000
                    = 60,450