Andy purchases only two goods, apples (a) and kumquats (k). He has an income of $120 and can buy apples at

$1 per pound and kumquats at $2 per pound.

His utility function isU(a,k)=3a+5k.

That is, his constant marginal utility for apples is 3 and his constant marginal utility for kumquats is 5.

What bundle of apples and kumquats should Andy purchase to maximize his utility? Why?

Andy should maximize his utility buy purchasing ____ apples (lbs.) and ___ kumquats (lbs.). (Enter your responses rounded to the nearest whole number.)