Aman buy 10 lemon on 20 and sell 8 lemon on 20 find his profit or loss percent

The problem with this problem is I can't tell how much money he has gained because I don't know how much the lemons are actually worth. If the lemons are worth 20 bucks for 10, then he made 4 bucks, but if they are actually worth 20 bucks for 8, then he made 5 bucks. (i believe everything i said is true but i could be wrong)

idk sry

step-by-step explanation:

x = ± 6i

step-by-step explanation:

x^2 = -36

take the square root of each side

sqrt(x^2) = sqrt(-36)

we know sqrt(ab) = sqrt(a) sqrt(b)

x = ±sqrt(36) sqrt(-1)

we know that sqrt (-1) = i

x = ± 6i