Christopher's age now: C
Ishaan's age now: I
Christopher is 20 years younger than Ishaan ---> C = I - 20 equation #1
Ishaan and Christopher first met two years ago ---> ignore this
Fourteen years ago, Ishaan was 3 times as old as Christopher ---> I - 14 = 3(C - 14) equation #2
Replace equation #1 into equation #2: I - 14 = 3( [I - 20] - 14 )
I - 14 = 3( I - 20 - 14 )
I - 14 = 3( I - 34 )
I - 14 = 3I - 102
add 102 to both sides: I + 88 = 3I
subtract I from both sides: 88 = 2I
divide by 2: 44 = I
Since C = I - 20 ---> C = 44 - 20 ---> C = 24