Answer: 172, 174 and 176
Step-by-step explanation:
Since they are even numbers,
Let x be the number, x + 2 be the second number and x +4 the third number
can think of this as x+(x+2)+(x+4)=522
so you get 3x=522-6
3x= 516
so x=172
If x is 172, second number is 174 and third number is 176