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Bill is four times as old as Lily. Two years from now, Bill will be nine times as old as Lily was two years ago. Find their present ages.

Solución

Bill is four times as old as Lily. Two years from now, Bill will be nine times as old as Lily was two years ago. Find their present ages.

Solución

Lily^{'} s age is : 4

Bill^{'} s age is : 16

Pasos de solución

Translate the problem into an equation:

4 x + 2 = 9 (x - 2)

Resolver para

x, 4 x + 2 = 9 (x - 2) : x = 4

Hallar age

Lily^{'} s age is : 4

Bill^{'} s age is : 16

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