The average (arithmetic mean) of three numbers is 50. If two of the numbers have a sum

Question:

The average (arithmetic mean) of three numbers is 50. If two of the numbers have a sum of 85, what is the third number? 

A) 75 

B) 70 

C) 65 

D) 55

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For  answer-question

McGraw-Hill Education SAT 2017

ISBN: 9781259641657

1st Edition

Authors: Christopher Black, Mark Anestis

Question Posted: