If you mean in 1 hour, then what you have to do is compare. If she sold 162 in 5 hours, how many did she sell in 1 hour. That will be;
162=5 hours
y = 1 hour
I represented the unknown with y. Anyway, you have to cross and multiply. Y multiplies 5 and 162 multiplies 1. That is;
162 x 1= y x 5
Y multiplied by 5 is 5y. So;
162=5y
Next, you have to divide the both sides by 5, this is because 5 is attached to y, and you are trying to find y, so you have to remove all that is attached. You have to divide because the relationship between 5 and y is multiplication, the opposite of multiplication is division. So;
162/5=5y/5
And that is;
32.4=y
y=32.4
So in 1 hour, she makes 32.4 cups, approximately 32 cups. Hope this helped, have a wonderful day.