Problema Solution
Clara was born on January 1, 2004 and her mother, Sinclair, was born on January 1, 1976. In what year will Sinclair's age be twice Clara's age?
Answer provided by our tutors
Clare and Sinclair have (2004 - 1976) = 28 years between them
Lets assume x is the age of Clair then the age of her mother will be x + 28
since we need x such that Sinclair's age = Clara's age we have
(x + 28) = 2x
by solving we find
x = 28
if 28 is the age of Claire, 28 years after January 1, 2004 is the year of 2032.
indeed in the year of 2032 Clair will be 28 years old and her mother will be 2032 - 1976 = 56 years old.