Carol spends $40 budget on two goods, hotdog and hamburger. The table below shows her marginal utility for hotdogs and hamburgers. The price of a hotdog is $5 and the price of a hamburger is $10.

Quantity of hotdog	Marginal Utility (hotdog)	Marginal Utility per Dollar (hotdog)	Quantity of hamburger	Marginal Utility (hamburger)	Marginal Utility per Dollar (hamburger)
1	150		1	200
2	120		2	180
3	100		3	150
4	90		4	120
5	60		5	100
6	40		6	60

1. Compute each marginal utility per dollar for hotdog and marginal utility per dollar for hamburger. Complete the table above.
2. What combination of hotdog and hamburger will maximise Carol's utility?