Question

Since it arrived at a zoo, a rhinoceros's weight has increased from 1 1/4 tons to 2 1/4 tons. By what percent has the rhinoceros's weight increased?

Answer 1

80 percent increase in weight

Explanation:

(2 1/4 - 1 1/4)/ 1 1/4 = 1/ (1 1/4) = .8 80 % increase