Directions: In this type you are provided with substitutes for various mathematical symbols or numerals, followed by a question involving calculation of an expression or choosing the correct / incorrect equation. You are required to put in the real signs or numerals in the given equation and then solve the question.

If Q means to +, J means to ×, T means - , K means ÷, then 30 K 2 Q 3 J 6 T 5 =