Posted by Venus on .
Six dogs have an average(arithmetic mean) weight of 55 pounds. If the heaviest dog weighs 100 pounds, the lightest dog weighs 5 pounds, and the secondlightest dog weighs 30 pounds, what is the average weight of the other 3 dogs in pounds?

Math  Averages 
Ms. Sue,
6 * 55 = 330
330  135 = 195
Find the average of the 3 dogs.