If the ratio between pinto and black beans is 1:1, when there are 300 of one type, there has to be another 300 of the second type. Which means that there are 600 beans in total in the jar.
Answer:
600
Step-by-step explanation:
Pinto : Black = 1 : 1
When Pinto = 300, Black = 300
Total = 300 + 300 = 600
