Question
Download Solution PDFज्या संचाची संख्या खालील संचातील संख्यांप्रमाणेच संबंधित आहे तो संच निवडा.
(टीप: संख्यांचे घटक अंकांमध्ये विभाजन न करता संपूर्ण संख्यांवर क्रिया केल्या पाहिजेत.)
(3, 14, 1)
(4, 36, 2)
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFतर्क : (पहिल्या संख्येचा घन + तिसऱ्या संख्येचा घन) / 2 = दुसरी संख्या
दिलेले आहे:
-
(3, 14, 1)
⇒\({(3)^3 + (1)^3 \over 2}\) = 14
⇒\({27 + 1 \over 2}\) = 14
⇒\({28 \over 2}\) = 14
⇒14 = 14 (डावी बाजू = उजवी बाजू)
- (4, 36, 2)
⇒\({(4)^3 + (2)^3 \over 2}\) = 36
⇒\({64 + 8 \over 2}\) = 36
⇒\({72 \over 2}\) = 36
⇒36 = 36 (डावी बाजू = उजवी बाजू)
म्हणून,
- पर्याय - (1) : (8, 12, 2)
⇒\({(8)^3 + (2)^3 \over 2}\) = 12
⇒\({512 + 8 \over 2}\) = 12
⇒\({520 \over 2}\) = 12
⇒260 ≠ 12 (डावी बाजू ≠ उजवी बाजू)
- पर्याय - (2) : (5, 81, 4)
⇒\({(5)^3 + (4)^3 \over 2}\) = 81
⇒\({125 + 64 \over 2}\) = 81
⇒\({189 \over 2}\) = 81
⇒94.5 ≠ 81 (डावी बाजू ≠ उजवी बाजू)
- पर्याय - (3) : (7, 40, 3)
⇒\({(7)^3 + (3)^3 \over 2}\) = 40
⇒\({343 + 27 \over 2}\) = 40
⇒\({370 \over 2}\) = 40
⇒185 ≠ 40 (डावी बाजू ≠ उजवी बाजू)
- पर्याय - (4) : (8, 260, 2)
⇒\({(8)^3 + (2)^3 \over 2}\) = 260
⇒\({512 + 8 \over 2}\) = 260
⇒\({520 \over 2}\) = 260
⇒260 = 260 (डावी बाजू ≠ उजवी बाजू)
म्हणून, "पर्याय - (4)" हे योग्य उत्तर आहे.
Last updated on Jun 13, 2025
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