Question
Download Solution PDFনিম্নলিখিত সমীকরণটিকে গাণিতিকভাবে সঠিক করতে কোন দুটি চিহ্নকে পরিবর্তন করতে হবে?
63 + 5 ÷ 35 - 7 × 21 = 23
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFপ্রদত্ত সমীকরণ : 63 + 5 ÷ 35 - 7 × 21 = 23
প্রশ্ন অনুযায়ী, গাণিতিক চিহ্ন বিনিময় করে:
সুতরাং,
- বিকল্প - (1): ÷ এবং ×
63 + 5 ÷ 35 - 7 × 21 = 23 ⇒ 63 + 5 × 35 - 7 ÷ 21 = 23
63 + 5 × 35 - 0.33 = 23
63 + 175 - 0.33 = 23
238 - 0.33 = 23
237.67 ≠ 23 (বামপক্ষ ≠ ডানপক্ষ)
- বিকল্প - (2): × এবং +
63 + 5 ÷ 35 - 7 × 21 = 23 ⇒ 63 × 5 ÷ 35 - 7 + 21 = 23
63 × 0.14 - 7 + 21 = 23
9 + 21 - 7 = 23
30 - 7 = 23
23 = 23 (বামপক্ষ = ডানপক্ষ)
- বিকল্প - (3): ÷ এবং +
63 + 5 ÷ 35 - 7 × 21 = 23 ⇒ 63 ÷ 5 + 35 - 7 × 21 = 23
12.6 + 35 - 7 × 21 = 23
12.6 + 35 - 147 = 23
47.6 - 147 = 23
-99.4 ≠ 23 (বামপক্ষ ≠ ডানপক্ষ)
- বিকল্প - (4) : + এবং -
63 + 5 ÷ 35 - 7 × 21 = 23 ⇒ 63 - 5 ÷ 35 + 7 × 21 = 23
63 - 0.14 + 7 × 21 = 23
63 + 147 - 0.14 = 23
210 - 0.14 = 23
209.86 ≠ 23 (বামপক্ষ ≠ ডানপক্ষ)
Last updated on Jul 7, 2025
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-> The SSC GD Notification 2026 will be released in October 2025 and the exam will be scheduled in the month of January and February 2026.
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