Question

Five years ago nuri was thrice as old as sonu.ten years letter nuri will be twice as old as sonu.how old are nuri and sonu

Answer 1

Answer:

Step-by-step explanation:

According to given conditions,

5 years ago,

x - 5 = 3(y - 5)

x - 3y = -10 ...... (Eqn 1)

10 year later,

x + 10 = 2(y + 10)

x - 2y = 10 ........ (Eqn 2)

On subtracting eqn 1 from 2,

(x - 2y) - (x - 3y) = 10 + 10

-2y + 3y = 20

y = 20

On substituting y = 20 in eqn 2,

x = 2 × 20 + 10

x = 50

Hence present age of Nuri is 50 years and present age of Sonu is 20 years

Answer 2

Answer:

Age of nuri is 50 and sonu is 20...

Step-by-step explanation:

Age of Nuri = x years.

Age of Sonu = y years.

5 years ago......

Nuri was thrice old as sonu.

=x-5=3(y-5)

=x-5=3y-15

=x-3y-5+15=0

=x-3y+10=0 --------->equation(1)

10 years later.........

Nuri will be twice as old as Sonu

=x+10=(y-10)

=x+10=2y+20

=x-2y+10-20=0

=x-2y-10=0--------->equation(2)

x-3y+10=0--------->equation 1

x-2y-10=0--------->equation 2

Substituting value in y in equation 1

=x-3×20

=x= -10

= -10+60

= 50

Hence,

Age of NURI = 50

Age of SONU =20

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