Grades 11-12 Video Solutions 2011-11&12 Video Solutions 2011 problem2

11&12 Video Solutions 2011 problem2

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Video Summary

The problem involves determining Luke's current age based on his relationship with his sister's age. One year ago, Luke was 10 years older than his sister. In four years, Luke will be twice his sister’s age. Setting up equations, if L is Luke's age and S is his sister's, we find from the information given that L = S + 10. Substituting and solving these equations, we find that the sister’s current age, S, is 6 years old, making Luke 16 years old. Therefore, the answer is that Luke is currently 16 years old.

Keywords

Luke's age

sister's age

age relationship

equations

age problem