Elephant is 3 tons, and eats 300 pounds of food a day. what percentage of is body weight does it eat per day?

On a daily average it eats 10% of its body weight. The quickest form to solve this is to convert the tons to pounds. (1T=1000Lb) So you know that the elephant weighs 3,000 pounds. Now the quickest way is to divide 3,000 by 300 which should be equal to 10.