Question

Ravi and his younger sister's sum of ages is 30 , Ravi is 4 years older than his sister , tell their present ages - Class 6 Algebra​

Answer 1

Answer:

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Answer 2

Answer:

▪︎Ravi age = 17 years

▪︎Ravi's younger sister age = 13 years

Step-by-step explanation:

Given :

Sum of the age of Ravi and its younger sister = 30

Ravi is 4 years older then his sister

To find :

Their present age

Taken :

Let the Ravi age be x+4 years because Ravi is 4 years older than his younger sister .

Let the age of his younger sister be x years

So , the equation will form like this -:

$\boxed{\rm{x+x+4=30}}$

Solution :

$:\implies\rm{x+x+4=30}$

$:\implies\rm{2x+4=30}$

$:\implies\rm{2x=30-4}$

$:\implies\rm{2x=26}$

$:\implies\rm{x=\cancel{\dfrac{26}{2}}}$

$:\implies\rm{x=13\:years}$

So , the age of Ravi's younger sister is 13 years .

Ravi's age -:

$:\implies\rm{x+4}$ . . . . . . . . . . . . . . . . . . x = 13

$:\implies\rm{13+4}$

$:\implies\rm{17\:years}$

So , the age of Ravi is 17 years .