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Sarah is 3 1/2 feet tall.Her brother Luke is 12 years older than Sarah and 1 3/4 times taller than her.how tall is Luke?

Solution

Sarah is 3\frac{1}{2} feet tall.Her brother Luke is 12 years older than Sarah and 1\frac{3}{4} times taller than her.how tall is Luke?

Solution

Luke^{'} s age is : 15 \frac{1}{2}

Sarah^{'} s age is : 3 \frac{1}{2}

Solution steps

Translate the problem into an equation:

x - 12 = \frac{7}{2}

Solve for

x, x - 12 = \frac{7}{2} : x = \frac{31}{2}

Find age

Luke^{'} s age is : 15 \frac{1}{2}

Sarah^{'} s age is : 3 \frac{1}{2}

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