1kg of cheese is 5.60 how much is 200g

We have to know what is the relationship of 1km and 200 gram.

1kilogram is 1000 gram: kilo means thousand.

200 gram is 1/5th of 1000 gram: 1000/200 is 5 (so 200 fits "five times" into 1000)

So we want to know how much does is cost when we want 1/5 of the original cheese, we have to divide the original prize by 5: 5.60/5=1.12

So the final prize is 1.12