Question

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

Answer 1

Answer:

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Step-by-step explanation:

Solution:

Let Ravi’s present age be x years.

After fifteen years, Ravi’s age = 4x years.

Fifteen years from now, Ravi’s age = (x+15) years.

According to question, 4x = x + 15

\Rightarrow\ 4x-x=15⇒ 4x−x=15

[Transposing x to L.H.S]

3x = 15

\Rightarrow\ \frac{3x}{3}=\frac{15}{3}⇒

3

3x

=

3

15

[Dividing both sides by 3]

x = 5 years.

Hence, Ravi’s present age be 5 years.

Answer 2

Answer:

Ravi present age is 5yrs

Step-by-step explanation:

Fifteen years from now Ravi's age = four times his present age

(R + 15yr) = 4R

R + 15yrs = 4R

15yrs = 4R - R

15yrs = 3R

R = 5yrs