Question

John is 15 years older than her cousin. The sum of thier ages is no less than 110 years

Answer 1

The youngest age John's cousin can be is 48 years

Explanation:

The complete question is

John is 15 years older than her cousin. The sum of their ages is no less than 110 years

What is the youngest age John's cousin can be?

Let

x -----> John's age

y -----> John's cousin's age

we know that

`x=y+15` -----> equation A

`x+y \geq 110` -----> inequality B

Substitute equation A in the inequality B and solve for y

`y+15+y \geq 110`

`2y+15 \geq 110`

`2y \geq 110-15`

`2y \geq 95`

`y \geq 47.5`

The youngest age John's cousin can be is 48 years