Question

A pharmacist mixes 10 grams of a 15% medicine solution with 25 grams of a 10% medicine solution.

How many grams of medicine does the mixture contain?

Answer 1

4

Alternative forms:

`2^(2)`

Explanation:

Based on the given conditions, formulate:

10% ×
`25+10` × 15%

Calculate:

0.1 ×
`25+10` × 0.15

Calculate the product or quotient:

`2.5+10` ×
`0.15`

Calculate the product or quotient:

`2.5+1.5`

Calculate the sum or difference:

4