Hi, I am studying for Microeconomics. I would like to ask you about the utility function. The whole questions is : Janet consumes two commodities x...

Hi, I am studying for Microeconomics. I would like to ask you about the utility function.

The whole questions is :

Janet consumes two commodities x and y. Her utility function is U = min {x+2y, y+2x}. She chooses to buy 10 units of good x and 20 units of good y. The price of good x is $1. Janet's income is?

a.50

b.30

c.40

d.20

How can I find which one is the min in the utility function U = min {x+2y, y+2x}?

Can you show and explain me the whole step solving this question please?