Question

Raju's age is twice Ravi's age:4 years ago was three times as old as ravi. Express it in linear equation in one variable​

Answer 1

Answer:

Correct option is

A

5

Let Ravi's present age be x years.

After 15 years, his age will be (x+15) years.

It is given that after 15 years, Ravi's age will be four times his present age.

∴4x=x+15

⇒4x−x=15

⇒3x=15

⇒x=

3

15

=5

Hence, Ravi's present age is 5 years.

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Answer 2

Answer:

Let Ravi's present age be x year

Step-by-step explanation:

Let Ravi's present age be x years.

After 15 years, his age will be (x+15) years.

It is given that after 15 years, Ravi's age will be four times his present age.

∴4x=x+15

⇒4x−x=15

⇒3x=15

⇒x=

3

15

=5

Hence, Ravi's present age is 5 years

Hope it is helpful..