Mathematical operations
Mathematical operations is a Aptitude concept from the MPSC syllabus, tested in 4 past MPSC questions across 4 exam years between 2014 and 2025. Below are those real questions with their correct answers and explanations, plus the concepts worth being comfortable with first.
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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.
पुढील संख्यात्मक राशी बरोबर ठरण्यासाठी ज्या गणिती चिन्हांची अदलाबदल करायला हवी त्यांची जोडी दर्शवणारा पर्याय निवडा. 4 + 2 - 4 x 9 ÷ 12 = - 22 Select the option that gives appropriate pair of mathematical signs that need to be interchanged to make the following numerical expression correct. 4 + 2 - 4 x 9 ÷ 12 = - 22
Substitute the mathematical signs from each option into the given equation following the BODMAS rule until the equation balances to -22.
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.
जर 'R' हा 'भागकार' दर्शवितो, 'T' हा 'बेरीज' दर्शवितो, 'W' हा 'वजाबाकी' दर्शवितो आणि 'B' हा 'गुणाकार' दर्शवितो तर 15W12T8R2B6 = ? If 'R' denotes ‘divided by', 'T' denotes ‘added to', 'W' denotes ‘Subtracted from’ and 'B' denotes ‘multiplied by’ then 15W12T8R2B6 = ?
Substitute symbols: R = /, T = +, W = -, B = *. Expression: 15W12T8R2B6 becomes 15 - 12 + 8 / 2 * 6. Following BODMAS: 8 / 2 = 4; 4 * 6 = 24; 15 - 12 + 24 = 3 + 24 = 27.