Question

Q:10 After 12 years , your friend will be 3 times as old as he was 4 years ago. His present age is
1) 10 yrs
2) 13 yrs
3) 12 yrs
4) 15 yrs​

Answer 1

Step-by-step explanation:

Let the present age of friend be X.

After 12 years,

friend's age(X+12) will be 3 times as old as he was 4 years ago[3(X-4)]

i.e.

X+12=3(X-4)

X+12=3X-12

2X=24

X=12.

Hence friend's present age is 12.

Answer 2

Answer:

3) 12 Years

Step-by-step explanation:

Let the present age of my friend be 'x'.

A/q,

x + 12 = 3(x - 4)

Therefore, x + 12 = 3x - 12

=> 24 = 2x

=> x = 24/2

=> x = 12

So, the present age of my friend is 12 years.

Thank you

I hope it helped you....