Solving for Kelly and Her Brother's Ages Using a Riddle Equation

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SUMMARY

The discussion centers on solving a riddle equation to determine the current ages of Kelly and her brother based on the information that four years ago, Kelly was twice as old as her brother, and the product of their current ages is 160. The initial attempt at forming an equation was incorrect, leading to a misunderstanding of how to incorporate both the age difference and the product condition. The correct approach involves establishing two variables, K for Kelly's age and B for her brother's age, and setting up the equations: K - 4 = 2(B - 4) and K * B = 160.

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hi all ,,,,

Homework Statement



Four years ago, kelly was twice as old as her brother. Find the present age of kelly and
her brother if the product of their ages today is 160.



The Attempt at a Solution



well,, I tried with this method

2x+x=152 ,,,,, => ( 2x+4 ) + (x+4) = 160 ,,,, the answer I got was 152/3


my teacher told me , my answer is wrong


can anyone help me with making an equation ,,,,
 
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Try with two variables, say K for Kelly and B for Brother.

Try to write equation for

product of their ages today is 160.
 
thx a lot my brother ,,,, i didn't focus on product ,,,
 

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