### Instruction: Karina was born in 1970 and she is currently twice as old as her brother. If her current age is 40, in what year was her brother born? Please respond by writing a program in Python.### Response: # Python Program to find the birth year of Karina's brother
# Given
Karina_birth_year = 1970
Karina_age = 40
# As Karina is twice as old as her brother, her brother's age is
brother_age = Karina_age // 2
# Brother's birth year would be current year minus his age
current_year = Karina_birth_year + Karina_age
brother_birth_year = current_year - brother_age
print(brother_birth_year)