Three positive numbers are in the ratio 2 : 3 : 4. If the sum of their squares is 2349, then the numbers respectively areतीन धनात्मक संख्याएँ 2 : 3 : 4 के अनुपात में हैं। यदि उनके वर्गों का योग 2349 है, तो संख्याएँ क्रमशः हैं
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Correct answer: B. 18, 27 and 3618, 27 और 36
Explanation
Let the numbers be 2k, 3k, 4k. Then 4k² + 9k² + 16k² = 29k² = 2349, so k² = 81 and k = 9. Numbers = 18, 27 and 36.माना संख्याएँ 2k, 3k, 4k हैं। तब 4k² + 9k² + 16k² = 29k² = 2349, अतः k² = 81 और k = 9। संख्याएँ = 18, 27 और 36।More Mathematical Reasoning and Aptitude questions
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