Janet prepared 15 kilograms of dough after working 3 hours. How much dough did Janet prepare if she worked for 4 hours?

Janet prepares 20 kilograms of dough

Step-by-step explanation:

Based on Janet's first preparation she prepared a total of 5 kilo grams of dough per hour

15/3 = 5

So based on that information multiply 5 by 4 and you will get 20 which is the correct answer.

20 kilograms

Step-by-step explanation:

15 divided by 3 is 5 so that is 5 kilograms a hour so just add another 5 kilograms and you get 20 kilograms