Question

A zookeeper predicted the weight of a new baby elephant to be 273 pounds when it was born. The elephant actually weighed 305 pounds at birth. What was the percent error of the zookeeper's prediction?
A.
32%
B.
11.72%
C.
10.49%
D.
89.51%

Answer 1

use the rule of 3 simple

but like a first step calcule the difference between what predicted the zookeeper and the weight at birth

305 - 273 = t pounds

after you get the difference using the rule of 3 simple you can write

305 pounds mean 100%
t pounds mean x% cross multiplie and calcule the x value and in this way will get easy the percent error