Question

Five years ago nuntan was thrice old as shalia.Ten years later nuntan will be twice old as shalia .How old are nuntan and shalia

Answer 1

Answer:

Let the present age of Shikha and Rani be x and y respectively.

∴ Given that five years ago, Shikha was thrice as old as Rani.

⇒(x−5)=3(y−5)

⇒x−5=3y−15

⇒3y−x=10⟶(i)

Also given that 10 years later, Shikha will be twice as old as Rani.

∴(x+10)=2(y+10)

⇒x+10=2y+20

⇒x=2y+10

Substituting the value of x in eq

n

(i), we have

3y−(2y+10)=10

⇒3y−2y−10=10

⇒y=20

∵x=2y+10

⇒x=2×20+10

⇒x=50

Hence, present age of Shikha and Rani are 50 and 20 respectively.

Step-by-step explanation:

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