Question

in 5 years time Reshma will be three times old as she was 9 years ago how old is she now

Answer 1

hope it makes your query clear

Answer 2

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$\tt{According \: To \: The \: Question,}$

$\tt{Present \: Age \: Of \: Reshma = x \: Years}$

$\tt{Age \: Of \: Reshma \: After \: 5 \: Years = (x + 5)Years}$

$\tt{Age \: Of \: Reshma \: Before \: 9 \: Years = (x - 9)Years}$

$\implies \tt{x + 5 = 3(x - 9)}$

$\implies \tt{x + 5 = 3x - 27}$

$\implies \tt{x - 3x = - 27 - 5}$

$\implies \tt{ - 2x = - 32}$

$\implies \tt{x = 16Years}$

$\tt\red{∴Present \: Age \: Of \: Reshma = 16Years}$

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