Question 193745
A student gets an 86% on one test and 73% on the second test. What does the student need to get on the third exam to stay at a B (83%)?



(86+73+x)/3>=83


(159+x)/3>=83


159+x>=83(3)


159+x>=249


x>=249-159


x>=90



Ans: Student needs 90% or better.