Question

Peter's age is three times of his son's age. Ten years ago he was five times of his son's age. Find their present ages.
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Answer 1

Answer:

15 age

Step-by-step explanation:

Peter age is three time so than five rime of son soo it is the answer

Answer 2

Answer:

amon =peter ok

Step-by-step explanation:

Ncert solutions

Grade 8

Mathematics

Science

Chapters in NCERT Solutions - Mathematics , Class 8

Exercises in Linear Equations in One Variable

Question 10

Q10) Aman’s age is three times his son’s age. Ten years ago he was five times his son’s age. Find their present ages.

Solution

Transcript

Solution:

Let the present age of Amon’s son be x years.

Therefore, Aman’s age = 3x years.

According to question,

3x-10=5\left(x-10\right)3x−10=5(x−10)

\Rightarrow3x-10=5x-50⇒3x−10=5x−50

\Rightarrow3x-5x=-50+10⇒3x−5x=−50+10

\Rightarrow\ -2x=-40⇒ −2x=−40

\Rightarrow x=\frac{-40}{-2}=20⇒x=

−2

−40

=20 years

Hence, Aman’s son’s age = 20 years

And Aman’s age = 3 x 20 = 60 years