Question

Anthony and his son Johnny are exercising more regularly and keeping track of their weight loss. Both Anthony and Johnny lost 10 pounds. From this information alone, can you determine if they both lost the same percentage of weight? If not, why?

Answer 1

no.

Explanation:

no, it is impossible: the percentage is the part of initial/final value. If 1st initial weight is more than the 2d one, then the 10 pounds of the 1st weight is less percentage than the 10 pounds of the 2d weight. But not the initial nor final weight is not given.