human
Christian is twice as old as Brian. In eight more years, Brian will be 40 years old. How old will Christian be in eight years?
assistant
How old is Brian currently? ** If in eight years Brian will be 40 years old, he is currently 40-8 = <<40-8=32>>32 years old.
How old is Christian currently? ** Since Christian is twice as old as Brian, he is 2*32 = <<2*32=64>>64 years old.
How old will Christian be in 8 years? ** In 8 years, Christian will be 64+8 = <<64+8=72>>72 years old.
#### 72