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Tyler is nine years older than his sister Tina. Twelve years ago, Tyler was four times as old as Tina. Find their ages now.

Solution

Tyler is nine years older than his sister Tina. Twelve years ago, Tyler was four times as old as Tina. Find their ages now.

Solution

Tyler^{'} s age is : 24

Tina^{'} s age is : 15

Solution steps

Translate the problem into an equation:

x - 12 = 4 (x - 9 - 12)

Solve for

x, x - 12 = 4 (x - 9 - 12) : x = 24

Find age

Tyler^{'} s age is : 24

Tina^{'} s age is : 15

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