Description for Correct answer: Let the positive number be x Now, according to question \( \Large x + 10 = \frac{200}{x} \) \( \Large x^{2} + 10x = 200 \) \( \Large x^{2} + 10x - 200=0 \) \( \Large x^{2} + 20x - 10x - 200 = 0 \) x(x + 20) - 10(x + 20) = 0 (x - 10)( x + 20) = 0 x = 10 or x = -20 But x is a positive number \( \Large x \ne -20 \) \( \Large x = 10 \) Hence the positive number is 10 option (b)is correct. Part of solved CDS Maths(2) questions and answers : Exams >> CDSE >> CDS Maths(2) Comments Similar Questions Recommended textbooks for you  Algebra: Structure And Method, Book 1 Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole Publisher:McDougal Littell Intermediate Algebra Author:Jerome E. Kaufmann, Karen L. Schwitters Publisher:Cengage Learning Glencoe Algebra 1, Student Edition, 9780079039897... Algebra & Trigonometry with Analytic Geometry Algebra for College Students Author:Jerome E. Kaufmann, Karen L. Schwitters Publisher:Cengage Learning Intermediate Algebra Publisher:OpenStax College Algebra: Structure And Method, Book 1 ISBN:9780395977224 Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole Publisher:McDougal Littell Intermediate Algebra ISBN:9781285195728 Author:Jerome E. Kaufmann, Karen L. Schwitters Publisher:Cengage Learning Glencoe Algebra 1, Student Edition, 9780079039897... ISBN:9780079039897 Author:Carter Publisher:McGraw Hill Algebra & Trigonometry with Analytic Geometry ISBN:9781133382119 Author:Swokowski Publisher:Cengage Algebra for College Students ISBN:9781285195780 Author:Jerome E. Kaufmann, Karen L. Schwitters Publisher:Cengage Learning Intermediate Algebra ISBN:9780998625720 Author:Lynn Marecek Publisher:OpenStax College |
Find a positive number which when increased by 10 is equal to 75 times the reciprocal of the
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