harold is a twice as old as jack, who is three years older than Dan. If Harold's age is five times Dan's age, how old in years is jack?

Question

Mathematics

Louis Guerra

28 July, 14:58

harold is a twice as old as jack, who is three years older than Dan. If Harold's age is five times Dan's age, how old in years is jack?

+2

Answers (2)

Know the Answer?

Abby · Answer 1

Answer

1 7/8 years or 1.875 years

Explanation

Let Jack's age be x years.

Then;

Harold = 2x years

Dan = 2x - 3

But Harolds age is thre times Dan's age.

∴ 2x = 5 (2x - 3)

2x = 10x - 15

2x - 10x = - 15

-8x = - 15

8x = 15

x = 15/8

= 1 7/8 years or 1.875 years

Kale · Answer 2

Jack is 5 years old, WOW!