Question

Fifteen years from now Ravi's age will be four times his present age. What is Ravi's present age?

class 8 Linear Equation 3​

Answer 1

Answer:

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Answer 2

$\bf \bold{Ravi’s \: present \: age \: will \: be \: 5.}$

$\: \: \: \: \: \: \: \: \: \: \: \: \: \huge \sf \blue{Solution:}$

From the given, Let Ravi’s present age is taken as "a" years.  

After 15 years, his age = (a+15) years.  

By the given, it is identified that the age of Ravi after 15 years is equal to the 4 times of his present age.

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$\sf{Given,}$

$\sf{\begin{gathered}\begin{array} { c } { a + 15 = 4 a } \\\\ { 4 a - a = 15 } \\\\ { 3 a = 15 } \\\\ { a = \frac { 15 } { 3 } } \\\\ { a = 5 } \end{array}\end{gathered}}$

Then, it has been found that the present age of Ravi is 5 when his age after 15 years will be 4 times of his present age.  

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