Question

Sergio believes he is five years younger than double the age of Chloe and Chloe believes she is five yearsolder than half of Sergio's age. Are they both right?

Answer 1

Let S represent Sergio's age

Let C represent Chloe's age

Sergio believes he is five years younger than double the age of Chloe. This would be expressed as

S = 2C - 5

Chloe believes she is five years older than half of Sergio's age. This means that

C = 5 + S/2

If we multiply the second equation by 2, it becomes

2C = 10 + S

This means that both equations are not the same. Therefore, they are not right