Question

Eunice and Belinda weighs 267 pound 6 ounces. Eunice and Laura weighs 223 pounds and 8 ounces. Laura weighs 136 pounds and 11 ounces. How much does Belinda weigh?

Answer 1

Answer:

180  9/16 lb

Step-by-step explanation:

Let the weights of the three girls be E, B and L.

Note that E + L = 223  8/16 lb, so subtracting L from both sides, that is, subtracting 136  11/16 lb from both sides, results in:

                E = 223  8/16 lb  -  136  11/16 lb  =  86  13/16 lb

Thus, E's weight is 86  13/16 lb,

          B's weight is 267  6/16 lb  -  86  13/16 lb = 180  9/16 lb

          L's weight is 136 11/16 lb.