Question

need answer for this ​

Answer 1

Step-by-step explanation:

let nuri age be x and sonu age be y

nuri age=x

sonu age=3y

x=3y

x-3y=0-------1

10 years later,

nuri age = x+10

sonu age =2y+10

x+10=2y+10

x-2y=20--------2

from 1 and 2

equation 1 - equation 2

x-3y=0

x-2y=20

- + - (change the signs)

-y=-20

y=20

from 1, putting the value of y in eq 1

x-3y=0

x-3×20=0

x-60=0

x=60

Hence the nuri's age is 60 years and 20 years.

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