The answer is 112 because the number in between keeps going up by three. I know that sounds confusing but here is my logic.
61-40=21 21+3=24 and 61+24=85 so this means that if we add 3 to 24, we will get 27 and if you add 27 to 85 you get 112. Then after that add 3 to 27 and get 30. Then add 30 to 112 and get 142.
So basically the answer is 112 because the number being added to the other numbers goes up by 3 every time. Hope that helped:)
