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Chapter 1 of 12 • Page 1 of 248🔒 Protected PDF • Watermarked
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ఇచ్చిన ప్రశ్నలో, 'A' అంటే '÷', 'B' అంటే 'x', 'C' అంటే '+' మరియు 'D' అంటే '-' అయితే, కింది సమీకరణంలో ప్రశ్న గుర్తు (?) స్థానంలో ఏది వస్తుంది?
159 C 60 A 12 B 11 D 203 =?
11
10
12
14
11
Apply BODMAS rule strictly: perform division (A) first, then multiplication (B), followed by addition (C) and subtraction (D).
Apply BODMAS rule strictly: perform division (A) first, then multiplication (B), followed by addition (C) and subtraction (D).
Mapping Operators
Replace letters with symbols: C = +, A = ÷, B = ×, D = -. The equation becomes: 159 + 60 ÷ 12 × 11 - 203.
Applying BODMAS
Solve in order: (Division) 60 ÷ 12 = 5; (Multiplication) 5 × 11 = 55; (Addition) 159 + 55 = 214; (Subtraction) 214 - 203 = 11.
B: 10 is mathematically incorrect based on standard operational order; C: 12 results from incorrect precedence order; D: 14 results from basic arithmetic errors during the addition/subtraction stage.
A is correct because the sequence of operations (159 + (60/12)*11 - 203) simplifies strictly to 159 + 55 - 203 = 11.
Always write down the substituted equation first and perform division and multiplication before attempting addition or subtraction to avoid common errors.
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