Question

In Science class, Sara needed 8 test tubes for 3 different experiments. The first experiment required 2 test tubes and the other two experiments required the same number of test tubes. How many test tubes were needed for each of the other two experiments?

Answer 1

Sara has already used 2 test tubes for the first experiment.
She still needs 8 - 2 = <<8-2=6>>6 test tubes for the other two experiments.
Since the other two experiments require the same number of test tubes, she needs 6 / 2 = <<6/2=3>>3 test tubes for each of the other two experiments. Answer: \boxed{3}.