Sophie is 3.5 years younger than her brother. She knows that when she is b years old, her brother is b+3.5 years old. Right now, Sophie is 11.5 years old.
How old is Sophie's brother?
Write your answer as a whole number or decimal.


Answer :

Sophie's Brother's Age : b+3.5 years old

Sophie's Age : b years old

                       = 11.5

Sophie's Brother's Age = 11.5 + 3.5

                                       = 15 years old

Hence, Sophie's brother is 15 years old.

Hope this helps :)
P.s. Can you mark me as the Brainliest? :]