What will come in place of the question mark (?) in the…
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Question (English)
What will come in place of the question mark (?) in the following equation, if ‘+’ and ‘–’ are interchanged and ‘×’ and ‘÷’ are interchanged?
$321 - 371 \div 22 + 216 \times 6 = ?$
- 7848
- 7884
- 8747
- 8447 ✓ Correct
Step 1: Identify the given equation and the interchange rules.
Original Equation: $321 - 371 \div 22 + 216 \times 6 = ?$
Rules for interchange:
- Replace ‘+’ with ‘–’ and ‘–’ with ‘+’
- Replace ‘×’ with ‘÷’ and ‘÷’ with ‘×’
Step 2: Apply the changes to the equation.
New Equation: $321 + 371 \times 22 - 216 \div 6$
Step 3: Solve using BODMAS rule (Brackets, Order, Division, Multiplication, Addition, Subtraction).
- First, perform Division: $216 \div 6 = 36$
- Equation becomes: $321 + 371 \times 22 - 36$
- Next, perform Multiplication: $371 \times 22 = 8162$
- Equation becomes: $321 + 8162 - 36$
- Finally, Addition and Subtraction: $8483 - 36 = 8447$
Therefore, the correct answer is 8447.
प्रश्न (हिंदी)
निम्नलिखित समीकरण में प्रश्न चिह्न (?) के स्थान पर क्या आएगा, यदि ‘+’ और ‘–’ को आपस में बदल दिया जाता है तथा ‘×’ और ‘÷’ को आपस में बदल दिया जाता है?
$321 - 371 \div 22 + 216 \times 6 = ?$
- 7848
- 7884
- 8747
- 8447 ✓
आइए इसे चरण-दर-चरण हल करते हैं:
चरण 1: प्रश्न के अनुसार चिह्नों को बदलें।
- ‘+’ की जगह ‘-’ और ‘-’ की जगह ‘+’ रखें।
- ‘×’ की जगह ‘÷’ और ‘÷’ की जगह ‘×’ रखें।
नया समीकरण बनेगा: $321 + 371 \times 22 - 216 \div 6$
चरण 2: BODMAS नियम का उपयोग करके हल करें।
- सबसे पहले भाग (Division) करें: $216 \div 6 = 36$
- अब समीकरण है: $321 + 371 \times 22 - 36$
- अब गुणा (Multiplication) करें: $371 \times 22 = 8162$
- अब समीकरण है: $321 + 8162 - 36$
- अंत में जोड़ और घटाव करें: $8483 - 36 = 8447$
अतः सही उत्तर 8447 है।
📚 About this Topic — General Intelligence and Reasoning (2024)-1
This multiple choice question is from General Intelligence and Reasoning (2024)-1. It has 4 options with a detailed explanation of the correct answer and is available in both English and Hindi (द्विभाषी). Practice more MCQs from General Intelligence and Reasoning (2024)-1 to strengthen your preparation.