Question

Marty is 2 years younger than 4 times his friend warren's age. The sum of their ages is greater than 10. What is the youngest age warren can be? Preferably I need a good answer before the day is up, please help me out! Reward is 25 points.

Answer 1

Answer: The youngest age Warren can be of 3 years.

Explanation:

Let x = Age of Warren

As per given,

Age of Marty = 4x-2

Also, sum of their ages is greater than 10.

i.e. (Age of Warren) + ( Age of Marty) >10

`\Rightarrow\ x+4x-2>10\\\\\Rightarrow\ 5x-2>10\\\\\Rightarrow\ 5x>10+2\\\\\Rightarrow\ 5x>12\\\\\Rightarrow\ x>\frac {12}5\\\\\Rightarrow\ x> 2.4`

Since 3 is just greater than 2.4.

So, the youngest age Warren can be of 3 years.