jones attained the following scores in three tests 36,75,60. if his average in four tests is 75, find his mark in the fourth test.

Answer 1

75 x 4 = 300

36 + 75 + 60 = 171

300 - 171 = 129 wow must have been lot of extra credit.

Answer 2

on three 150 point history test, you earned 88%, 94% and 90%. the final test is worth 250 points. what
percent is needed in the final test to earn 93% of total points on all tests