SOLUTION: Bill is twice as old as Mary. If he is exactly ten years older than Mary was last year, how old are Bill and Mary?
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Question 456570
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Bill is twice as old as Mary. If he is exactly ten years older than Mary was last year, how old are Bill and Mary?
Answer by
richwmiller(17219)
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b=2m
b=10+(m-1)
2m=10+m-1
2m=9+m
m=9
b=18