Question

OR
Sumit is 3 times as old as his son. Five years later, he shall be two and a
hall times as old as his son. How old is Sumit at present ?​

Answer 1

Answer:

Sumit is 45 yrs old at present

Step-by-step explanation:

Present age of Sumit = x

Present age of his son = y

At present

x = 3y ......(1)

5 years later

(x + 5) = 2½(y + 5)

x + 5 = (5/2) × (y + 5)

2(x + 5) = 5(y + 5)

2x + 10 = 5y + 25

2x - 5y = 25 - 10

2x - 5y = 15

From equation (1)

2(3y) - 5y = 15

6y - 5y = 15

y = 15 yrs

If y = 15 then from equation (1)

x = 3y

= 3 × 15

= 45 yrs

Answer 2

Step-by-step explanation:

Here you go