Well for one thing, it's painfully trivial. We had to estimate the number of marble candies in a glass jar back in 3rd grade. The closest estimate won the jar

Well for one thing, it's painfully trivial. We had to estimate the number of marble candies in a glass jar back in 3rd grade. The closest estimate won the jar of candies. We approached it methodically in much the manner I assume the interviewer expects the applicant to there? Estimate volume of the container. Estimate volume of a marble when packed together. Divide. I guess it does serve as a very, very basic test of arithmetic and reasoning skills. But kind of insultingly so.