A wholesale store advertises that for $20 you can buy one pound each of peanuts, cashews, and almonds combined. You purchase 2 pounds of peanuts, 1 pound of cashews, and 3 pounds of almonds for $36. What is the price per pound of each type of nut?

The cost of peanut per pound = 4$

The cost of cashews per pound = 10$

The cost of almonds per pound = 6$

1 pounds of peanut, 1 pound of cashews and 1 pounds of almonds are purchased for 20$ and is proved as 4 + 10 + 6 = 20$

While

2 pounds of peanut, 1 pound of cashews and 3 pounds of almonds are purchased for 36$ and is proved as (2*4) + (1*10) + (3*6) = 8 + 10 + 18 = 36$