Bruno can spend his income on two di Drake CDs and notebooks
Solution
a) Budget equation: 10C + 2N = 60
where C = CDs
N = Notebooks
If he is buying 3 CDs and 15 notebooks, he is spending 10(3) + 2(15) = 60
He will be exactly on the budget line as he is spending equal o his income.
b) Budget equation: 10C + 5N
In buying 3 CDs and 10 notebooks, he is spending 10(3) + 5(10) = 80
His income is $110, so he is spending less than his income. Thus this consumption bundle will lie inside the budget line.
c) Budget line equation: 20C + 10N = 50
His consumption bundle of 2CDs and 2 notebooks will cost him: 20(2) + 10(2) = $60
His income is $50, so this consumption costs him more than his income. Thus this consumption bundle will lie outside the budget line.
