Question

pls tell me the answer to this 10 problem

Answer 1

Here's your answer

10.

Let Aman's son's age be x
Aman's age is 3 times his son's age,
So,
Aman's age = 3x

Given,
10 years ago, Aman was 5 times his son's age .

The ages of Aman and his son 10years ago are :

Aman's age= 3x - 10 years

Son's age = x - 10 years

A balanced equation will be formed which is as follows:

$5(x - 10 )= 3x - 10$
Multiplying and removing the brackets,
we have,

$5x - 50 = 3x - 10$
Transposing 3x to LHS and -50 to RHS,
we have,

$5x - 3x = - 10 + 50$

$2x = 40$

$x = \frac{40}{2}$
x = 20

So,

Present age of Aman's son = x = 20years

Aman's present age = 3x = 3 × 20 = 60 years

Answer 2

let the age of son be x and of aman is y
then
y=3x-----------------1
before five year
y=5x-10-------------2
equalling1&2
3x=5x-10
2x=10
x=10/2
x=5
substituting in 1
it is 2*5
=10