Question 559488: Maria is five times older than her sister Debbie. In 6 years she will only be twice as old as Debbie. How old is Maria? Answer by htmentor(1343) (Show Source):
You can put this solution on YOUR website! Maria is five times older than her sister Debbie. In 6 years she will only be twice as old as Debbie. How old is Maria?
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Let M = Maria's age now
Then Debbie's age now = M/5
Given: In 6 years, Maria will be twice as old as Debbie:
M + 6 = 2(M/5 + 6)
Solve for M:
M + 6 = 2M/5 + 12
3M/5 = 6
M = 10
So Maria is 10 years old
