Three chemistry students measured the length of a copper bar. The recorded lengths were 5.05 cm, 5 cm, and 5.1 cm. What is the average length of the bar?

1 Answer
Oct 6, 2016

#5.05cm.#

Explanation:

Let the lengths, as recorded by the students, be denoted by,

#l_1,l_2 and l_3#.

Then, the Average length of the Bar is #(l_1+l_2+l_3)/3.#

We have, #l_1=5.05cm, l_2=5.00cm, and, l_3=5.10cm.#

Hence, the Reqd. Average

#=(5.05+5.00+5.10)/3=15.15/3=5.05cm#