Please give answers with formulas and explanation. Thank you

2. Dipto has a fixed of TK. 40, and he spends it all on two goods, X and Y. The price of X is Tk. 5 per unit, and the price of Y is Tk. 3 per unit. The table in the following shows the total benefit measured in BDT, Dipto receives from the consumption of each good. Quantity of X Total Benefit of X Quantity of Y Total Benefit of Y O 0 0 0 - 21 18 2 34 2 27 44 32 50 4 35 53 36 i) What is Dipto's marginal benefit of the 4th & 5th units of good X and 5th unit of good Y? ii) Calculate the total consumer surplus/shortage if Dipto consume 5th unit of good X and 4th unit of good Y. iii) Calculate the Net Benefit of Dipto's from the goods X and Y iv) On what point the utility was maximized by consuming good X and Y simultaneously