GRE Exam Numerical Ability Averages

When 9 students took a biology quiz with a possible score of 0 to 10, inclusive, there average (arithmetic mean) score was 7.5. If a tenth student takes the same quiz, what will be the least possible average score on the quiz for all 10 students?

Read Solution (Total 0)

GRE Other Question

Sofia and Tess will each randomly choose one of the 20 integers from 1 to 20. What is the probability that neither integer chosen will be square of the other ? Workers at Companies X and Y are paid the same base hourly rate. Workers at company X are paid 1.5 times the base hourly rate for each hour worked per week in excess of the first 37, while workers at Company Y are paid 1.5 times the base hourly rate for each hour worked per week in excess of the first 40. In a given week, how many hours must a Company X worker work in order to receive the same pay as a company Y worker who works 46 hours?