Answer:
1) GDP using product Approach ; Market value of all goods and services produced
= Coconut + Restaurant meal
= 10 million*$2 + ($30 million - $6 million*$2) as 6 million coconuts are sold to restaurant as raw materials so to avoid double counting.
= $20 million + $30 million - $12 million
= $38 million
2) Expenditure Approach : Consumption + Investment + Government Expenditure + Net Exports
= $4 million * $2 + $30 million + $5.5 million
= $8 million + $30 million + $5.5 million
= $43.5 million
3) Income Approach : Wages + Rent + Interest + Profit
= $5 million + $0.5 million + $1.5 million +$3 million + $4 million + $1 million
= $15 million