Question

my younger brother's age today is three times what it will be three years from now - 3 times what his age was three years ago if my brother is 5 years younger than me what is my present age​​

Answer 1

Answer:

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Step-by-step explanation:

Let my younger sister be x years old at present.

After 3 years, her age =(x+3)

Before 3 years, her age was =(x−3)

ACQ,

x=3(x+3)−3(x−3)

⇒ x=3(x+3−x+3)

⇒ x=2×6

⇒ 18

Therefore, 18 years is the present age of my younger sister.