Question
Download Solution PDFदी गई दो संख्याओं को परस्पर बदलने पर निम्नलिखित में से कौन-सा समीकरण सही होगा?
7 और 3
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिया गया है:
7 और 3 को परस्पर बदलने पर,
गणना:
आइए प्रत्येक विकल्प की जाँच करते हैं:
विकल्प 1: 3 ÷ 1 - 7 × 2 + 4 = 8
परस्पर बदलने के बाद: 7 ÷ 1 - 3 × 2 + 4 = 8
⇒ 7 ÷ 1 - 3 × 2 + 4 = 8
⇒ 7 - 6 + 4 = 8
⇒ 5 ≠ 8
यह समीकरण सही नहीं है।
विकल्प 2: 3 × 2 + 7 – 6 ÷ 3 = 18
परस्पर बदलने के बाद: 7 × 2 + 3 – 6 ÷ 7 = 18
⇒ 7 × 2 + 3 – 6 ÷ 7 = 18
⇒ 14 + 3 - 0. 85 = 18
⇒ 16.15 ≠ 18
यह समीकरण सही नहीं है।
विकल्प 3: 3 + 7 × 4 - 6 ÷ 2 = 20
परस्पर बदलने के बाद: 7 + 3 × 4 – 6 ÷ 2 = 20
⇒ 7 + 3 × 4 – 6 ÷ 2 = 20
⇒ 7 +12 - 3 = 20
⇒ 16 ≠ 20
यह समीकरण सही नहीं है।
विकल्प 4: 7 + 3 × 2 - 4 ÷ 1 = 13
परस्पर बदलने के बाद: 3 + 7 × 2 – 4 ÷ 1 = 13
⇒ 3 + 7 × 2 – 4 ÷ 1 = 13
⇒ 3 + 14 - 4 = 13
⇒ 13 = 13
यह सही समीकरण है।
इसलिए, सही उत्तर 'विकल्प 4' है।
Last updated on Jun 25, 2025
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