Fati buys milk at $Nx$ per tin and sells each tin at a profit of $Ny$. If she sells 10 tins of milk, we need to find the total amount she receives from the sales.

1. Problem Description

Fati buys milk at $Nx$ per tin and sells each tin at a profit of $Ny$. If she sells 10 tins of milk, we need to find the total amount she receives from the sales.

2. Solution Steps

Let the cost price of each tin of milk be $x$.

The profit on each tin of milk is $y$.

The selling price of each tin of milk is the cost price plus the profit, which is $x + y$.

Fati sells 10 tins of milk, so the total amount she receives is 10 times the selling price of each tin.

Therefore, the total amount she receives is $10(x + y)$.

3. Final Answer

D. $10(x+y)$