Question

Jorge is 1 year younger than his brother. The sum of their ages is no less than 25 years.

Enter an inequality that can be used to represent this situation in the first box, where x represents Jorge's brother's age.

Enter the youngest age Jorge's brother can be in the second box.

Answer 1

Let

x------> Jorge's age

y-----> Jorge's brother's age

we know that

$x=y-1$ -----> equation A

$x+y \geq 25$ -----> inequality B

substitute the equation A in the inequality B

$[y-1]+y \geq 25$

$2y \geq 25+1$

$y \geq 13$

The minimum value of y is equal to $13$ years

therefore

the answer is

the youngest age Jorge's brother is $13$ years