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شائع Word Problems >

Lauren's age is one third of Joe's age. Emma is three years older than Joe. The sum of Lauren, Emma, and Joe's age is 72. How old is Joe?

الحلّ

L a u re n^{'} s a g e i s o n e t hi r d o f J o e^{'} s a g e . E mma i s t h ree ye a rs o l d er t han J oe . T h e s u m o f L a u re n, E mma, an d J o e^{'} s a g e i s 72. Ho w o l d i s J oe ?

الحلّ

Joe^{'} s age is : 29 \frac{4}{7}

خطوات الحلّ

Translate the problem into an equation:

\frac{1}{3} x + x + 3 + x = 72

\frac{1}{3} x + x + 3 + x = 72, x

حلّ لـ:

x = \frac{207}{7}

حوّل من كسر تخيّليّ لعدد مختلط:

29 \frac{4}{7}

Joe^{'} s age is : 29 \frac{4}{7}

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