Question

The sum of the present ages of Kartik and Neha is 31yrs, 3 yrs ago Kartik's age was four times
Neha's age at that time. Find their present ages.​

Answer 1

Answer

Let the present age of kartik =x & neha =y

=yx+y=31−(i)

=yx+y=31−(i)x−3=4(y−3)−(ii)

=yx+y=31−(i)x−3=4(y−3)−(ii)⇒x−3=4y−12

=yx+y=31−(i)x−3=4(y−3)−(ii)⇒x−3=4y−12⇒x=4y−9

=yx+y=31−(i)x−3=4(y−3)−(ii)⇒x−3=4y−12⇒x=4y−9Putting in (i) , we get

=yx+y=31−(i)x−3=4(y−3)−(ii)⇒x−3=4y−12⇒x=4y−9Putting in (i) , we get5y−9=31

=yx+y=31−(i)x−3=4(y−3)−(ii)⇒x−3=4y−12⇒x=4y−9Putting in (i) , we get5y−9=31⇒5y=40⇒y=8

=yx+y=31−(i)x−3=4(y−3)−(ii)⇒x−3=4y−12⇒x=4y−9Putting in (i) , we get5y−9=31⇒5y=40⇒y=8⇒x=31−8⇒x=23

=yx+y=31−(i)x−3=4(y−3)−(ii)⇒x−3=4y−12⇒x=4y−9Putting in (i) , we get5y−9=31⇒5y=40⇒y=8⇒x=31−8⇒x=23⇒ Present age of kartik=23years

=23years⇒ Present age of neha=8 years

hope it helps

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Answer 2

Answer:

Neha is 8 years old and Kartik is 23 years old

Step-by-step explanation:

N+D=31

(N+D)-6 = 25

as 3 years is subtracted by both

25 = 4D+D = 5D

D = 25/5 = 5

1u = 5

4u = 20

Kartik = 20+3 = 23

Neha = 5+3 = 8