Question

Vishu is three times as old as his sister Ruby.Three years ago he was two years less than four times the age of his sister.Find their present age.

Answer should must be with full explanation spams will be reported.​

Answer 1

Answer:

Ruby's present age = 11 years, Vishu's present age = 33 years

Step-by-step explanation:

Let Ruby's age be x hence Vishu age would be  3x

Three years ago Ruby's age would be (x-3) and Vishu age would be (3x-3)

According to the question

3x-3 = 4(x-3)-2

$\therefore 3x-3=4(x-3)-2\\\implies 3x -3 = 4x -12-2\\\implies 3x-3=4x-14\\\implies14-3=4x-3x\\\implies11=x$

Therefore Ruby's present age is 11 years

and Vishu's present age is 33 years

Answer 2

Answer:

Let the present age of Ruby=x

And present age of Vishu =3x

Three years ago=Ruby's age=(x-3)

Vishu's age=3x-3

ATQ,

3x - 3 = 4 (x-3) - 2

3x-3 = 4x - 12- 2

3x-3 = 4x - 14

3x-4x = -14 + 3

x = 11

Ruby's age = 11

Vishu's age = 3 × 11 = 33