Question

Derek is 3 times as old as his sister Felicia. In 4 years he will be twice as old as Felicia.
How old are Derek and Felicia now?

Answer 1

Respuesta:

Derek is 12 and Felicia Is 4 years old

Explicación paso a paso:

Derek has 3 times the age of Felicia, so if we add 4 years to each one, Derek will have 16 and Felicia 8, wich means that 16 is the double of 8