Question

If Lina is three times as old as Nick, and in 6 years she will be twice as old as he, how old are they now

Answer 1

Lina 18 and nick is 6

Explanation:

Answer 2

Luna is 18, Nick is 6 years old

Explanation:

Luna = l, Nick = n

• l = 3n
• l + 6 = 2( n+ 6)

Substitute l in the second equation

• 3n + 6 = 2n + 12
• 3n - 2n = 12 - 6
• n = 6

Then

• l = 3*6 = 18