Angola’s is 10 years older than Alex. Mark is 11 years younger than Alex is the total of their ages is 68 how old is the youngest of them

Given:

Angola is 10 years older than Alex.

Mark is 11 years younger than Alex.

Total of their ages = 68 years

To find:

how old is the youngest of them.

Solution:

Let x be the age of Alex.

Age of Angola = 10 years older than Alex

                         = x + 10

Age of Mark = 11 years younger than Alex

                     = x - 11

Total ages = 68

Add 1 on both sides.

x = 23

Age of Alex = 23

Age of Angola = 23 + 10 = 33

Age of Mark = 23 - 11 = 12

Mark is 12 years who is the youngest of them.