It is already given in the question that the cost of 6 cakes is $1.80 and the problem requires us to find the cost of 10 cakes. As most of the information’s are in hand so getting to the answer will not be a problem at all.
The cost of 6 cakes is = 1.80
Then
The cost of 10 cakes = (1.80/6) * 10
= 18/6
= 3
So the cost of 10 cakes is $3.I hope you have the answer you are looking for.