Regra de 3

About Regra de 3

With this incredible calculator you can solve problems such as:
◘ João has 5 chickens that in total lay 10 eggs per month, how many chickens do he need to have 40 eggs per month?

◘ A cake recipe that requires 500 grams of chocolate feeds 8 people, how many grams of chocolate do I need to make a cake for 20 people?

◘ If with 17 workers I completed the job in 10 days, with 8 I would complete it in how many days?

Great questions, right? This app solves everything easily.

It has the option of proportional and inverse quantities.