Symbol substitution
Symbol substitution is a Aptitude concept from the MPSC syllabus, tested in 2 past MPSC questions (2014, 2024). Below are those real questions with their correct answers and explanations, plus the concepts worth being comfortable with first.
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Real questions that test this
खालील कोष्टकात गणितीय चिन्हांची नवी परिभाषा दिली आहे. — | + | ÷ | × | = | > | < --------------------------- A | E | C | D | F | G | B वरील कोष्टकाला अनुसरून खालील पर्यायांपैकी कोणते उत्तर अचूक आहे ते ठरवा. Some mathematical symbols are represented in a new notation by letters as shown in the following table. — | + | ÷ | × | = | > | < --------------------------- A | E | C | D | F | G | B Choose the correct expression from the following alternatives.
Substituting the letters back to their mathematical symbols according to the table and evaluating each option using BODMAS shows that option 4 forms a valid mathematical equation.
जर '+' म्हणजे '-', '-' म्हणजे 'x', '÷' म्हणजे '+' आणि 'x' म्हणजे '÷', तर 25× 5÷ 7-4+9 = ? If '+' means '-', '-' means 'x', '÷' means '+' and 'x' means '÷', then 25× 5÷ 7-4+9 = ?
Replace each symbol in the expression with its newly assigned operation and solve the resulting expression using the BODMAS rule.