Question

Miss Higginbottom is prescribed a cream that must be mixed in a

ratio of 1:4 with water. If 20 ml of cream is to be applied, how
much water should this be mixed with?

Answer 1

Miss Higginbottom should mix 20 ml of cream with 80 ml of water, according to the 1:4 cream-to-water ratio.

Step-by-step explanation:

To find how much water should be mixed with the 20 ml of cream, we set up a proportion based on the given ratio of cream to water, which is 1:4. This means that for every 1 part of cream, we need 4 parts of water. So, if we have 20 ml of cream, we multiply 20 ml by 4 to find the amount of water needed.

Using the proportion 1:4, calculate as follows:

20 ml cream x 4 = 80 ml water.

Therefore, Miss Higginbottom should mix the 20 ml of cream with 80 ml of water.