Julio's goal is to type an average of 50 words per minute on his five typing exams. His scores on the first four exams were 46,44,57 and 47 words per minute. How many words per minute will he need on his fifth exam to reach his goal? Options: 56,58,50,51

llm

Answered on Fri May 27 2022

Average required = 50 w/min

Scores on first four test : 46,44,57 and 47

Let the score in 5th test be x

We know,

Average = sum of term/number of terms

50 = (46 + 44 + 57 + 47 + x)/5

Cross-Multiplying, we get

250 = 194 + x

x = 250 - 194

x = 56

Hence, he need 56 on his 5th exam to reach his goal.