यदि 'A' का अर्थ '÷' है, 'B' का अर्थ '×' है, 'C' का अर्थ '+' है, और 'D' का अर्थ '−' है, तो निम्नलिखित समीकरण में प्रश्न चिह्न (?) के स्थान पर क्या आएगा?
45 B 14 A 21 D 17 C 25 = ?

This question was previously asked in
RRB NTPC Graduate Level CBT-I Official Paper (Held On: 05 Jun, 2025 Shift 3)
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  1. 42
  2. 54
  3. 38
  4. 36

Answer (Detailed Solution Below)

Option 3 : 38
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दिए गए प्रतीकों के अर्थ हैं:

  • 'A' का अर्थ '÷' है
  • 'B' का अर्थ '×' है
  • 'C' का अर्थ '+' है
  • 'D' का अर्थ '−' है

दिया गया समीकरण है:

45 B 14 A 21 D 17 C 25 = ?

प्रतीकों को उनके संगत गणितीय संक्रियाओं से बदलें:

45 × 14 ÷ 21 − 17 + 25 = ?

अब, संक्रियाओं के क्रम (BODMAS/PEMDAS) का अनुसरण करें:

45 × (14 ÷ 21) − 17 + 25

45 × (2/3) − 17 + 25

30 − 17 + 25

13 + 25 = 38

इसलिए, सही उत्तर "विकल्प 3" है।

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