In this type, you are provided with substitutes for various mathematical symbols, followed by a question involving calculation of an expression or choosing the correct / incorrect equation. The candidate is required to put in the real signs in the given equation and then solve the questions as required. Note: - While solving a mathematical expression, proceed according to the rule BODMAS – i.e. Brackets, Of, Division, Multiplication, Addition, Subtraction.

Problem-Solving By Substitution , Problem-Solving By Substitution