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Popular >

Lucy is three times as old as Alex. Lucy is 7 years older than Megan. The sum of their ages is 126

Solution

Lucy is three times as old as Alex. Lucy is 7 years older than Megan. The sum of their ages is 126

Solution

Lucy^{'} s age is : 57

Megan^{'} s age is : 50

Alex^{'} s age is : 19

Solution steps

Translate the problem into an equation:

x + \frac{x}{3} + x - 7 = 126

Solve for

x, x + \frac{x}{3} + x - 7 = 126 : x = 57

Find age

Lucy^{'} s age is : 57

Megan^{'} s age is : 50

Alex^{'} s age is : 19

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