Question 110Asked in BPSC TRE 3.0 (2024) Mathematics Class 9-10

The product of two numbers is 120 and sum of their squares is 289. Then the sum of the two numbers isदो संख्याओं का गुणनफल 120 है और उनके वर्गों का योग 289, तो उनके योगफल है

दो संख्याओं का गुणनफल 120 है और उनके वर्गों का योग 289, तो उनके योगफल है
  1. A2323
  2. B77
  3. C1313
  4. DMore than one of the aboveउपर्युक्त में से एक से अधिक
  5. ENone of the aboveउपर्युक्त में से कोई नहीं
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Correct answer: (A) 2323

Explanation

(a + b)² = a² + b² + 2ab = 289 + 240 = 529, so a + b = 23.(a + b)² = 289 + 240 = 529, अतः योग = 23।

From BPSC TRE 3.0 (2024) Mathematics Class 9-10 — Previous Year Paper

This is question 110 of BPSC TRE 3.0 (2024) Mathematics Class 9-10 — Previous Year Paper. See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.