Question

hrehan is twice as old as riyaan sum of their ages is 30 find the ages of hrehan and riyaan

Answer 1

Hey

Here is your answer,

Let the ages of hrehan be x and riyaan be y.

X = 2y
X - 2y = 0

X + y = 30

Solving both the equations by elimination method,

X - 2y = 0
X + y. = 30
__________
-3y = -30
Y = 10

X = 2y
X = 2 x 10
X = 20

Therefore ,the age of hrehan is 20 and riyaan is 10.

Hope it helps you!

Answer 2

Heya !!


Let present age of Riyaan be X years.




Age of hrehan = 2X




According to the question,



2X + X = 30


3X = 30



X = 10 years .


Present age of Riyaan = X = 10 years.



And,

Present age of hrehan = 2X = 2 × 10 = 20 years.