Question 46Asked in CTET August 2023 Paper 2 Maths & Science, 20 Aug 2023

If x = √198 × √550 and y = ∛99 × ∛363, then 1/x + 1/y is equal to:यदि x = √198 × √550 और y = ∛99 × ∛363 है, तो 1/x + 1/y बराबर है :

यदि x = √198 × √550 और y = ∛99 × ∛363 है, तो 1/x + 1/y बराबर है :
  1. A0.0101… (0.01 with bar over 01)0.0101… (0.01 में 01 के ऊपर रेखा)
  2. B0.0333… (0.03 with bar over 3)0.0333… (0.03 में 3 के ऊपर रेखा)
  3. C0.3333… (0.33 with bar over 33)0.3333… (0.33 में 33 के ऊपर रेखा)
  4. D0.1111… (0.1 with bar over 1)0.1111… (0.1 में 1 के ऊपर रेखा)
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Correct answer: (B) 0.0333… (0.03 with bar over 3)0.0333… (0.03 में 3 के ऊपर रेखा)

Explanation

x = √(198 × 550) = √108900 = 330 and y = ∛(99 × 363) = ∛35937 = 33. 1/330 + 1/33 = 11/330 = 1/30 = 0.0333…, i.e. 0.03 with 3 recurring.x = √(198 × 550) = √108900 = 330 और y = ∛(99 × 363) = ∛35937 = 33। 1/330 + 1/33 = 11/330 = 1/30 = 0.0333…, यानी 0.03 जिसमें 3 आवर्ती है।

From CTET August 2023 Paper 2 Maths & Science, 20 Aug 2023 — Previous Year Paper

This is question 46 of CTET August 2023 Paper 2 Maths & Science, 20 Aug 2023 — 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.