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iVinArrow [24]
2 years ago
13

In seven years, Huang will be two times as old as he was last year. How old is he now?

Mathematics
2 answers:
erma4kov [3.2K]2 years ago
6 0

Answer:

The present age of Huang now = 9 years

Step-by-step explanation:

Let the present age of Huang be x years

Now, after 7 years, Age of Huang will be : x + 7 years

Also, two times as old as he was last year = 2 × (x - 1)

These both quantities are given to be equal in the problem

So, Equating both these equations :

⇒ x + 7 = 2 × (x - 1)

⇒ x + 7 = 2x - 2

⇒ 2x - x = 7 + 2

⇒ x = 9

Hence, The present age of Huang now = 9 years

kodGreya [7K]2 years ago
5 0

He's 9 years old.  :-)

In seven years, he'll be 16, and 16 is two times older than 8 - the age he was last year.

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