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

Heidy Cordova

Mathematics

31 October, 09:06

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?

Melanie Murillo · Answer 1

Melanie Murillo 31 October, 09:25

0

Jack is 5 years old, WOW!

Brayan Bernard · Answer 2

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