lucy and her mother were both born in january on march 29 2015 lucy adds the year of her birth the year of her mother's birth her age and her mother's age what is the result A 4028 B 4029 C 4030 D 4031 E 4032
lucy's birth year + mother's birth year + lucy's age + mother's age
Since their birthdays occurred in January, and it is now March...
lucy's age = 2015 - lucy's birth year
mother's age = 2015 - mother's birth year
Substitute these values in for lucy's age and mother's age.
= lucy's birth year + mother's birth year + (2015 - lucy's birth year) + (2015 - mother's birth year)
= lucy's birth year + mother's birth year + 2015 - lucy's birth year + 2015 - mother's birth year
= 2015 + 2015
= 4030
lucy's birth year + mother's birth year + lucy's age + mother's age
Since their birthdays occurred in January, and it is now March...
lucy's age = 2015 - lucy's birth year
mother's age = 2015 - mother's birth year
Substitute these values in for lucy's age and mother's age.
= lucy's birth year + mother's birth year + (2015 - lucy's birth year) + (2015 - mother's birth year)
= lucy's birth year + mother's birth year + 2015 - lucy's birth year + 2015 - mother's birth year
= 2015 + 2015
= 4030