CBSE Class 10 Sample Paper for 2022 Boards - Maths Standard [MCQ]

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Question 49 (Case Based Question) - CBSE Class 10 Sample Paper for 2022 Boards - Maths Standard [MCQ] - Solutions of Sample Papers for Class 10 Boards

Last updated at April 16, 2024 by

What are the coordinates of the position of a player Q such that his distance from K is twice his distance from E and K, Q and E are collinear?

(a) (1, 0)   (b) (0, 1)   (c) (−2, 1)   (d) (−1, 0)  

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Question 49 What are the coordinates of the position of a player Q such that his distance from K is twice his distance from E and K, Q and E are collinear? (a) (1, 0) (b) (0, 1) (c) (−2, 1) (d) (−1, 0) Let required point be Q (x, y) Given that Distance of Q from K is twice distance from E ∴ QK = 2 × QE Also, since K, Q and E are collinear KQ : QE = 2: 1 Coordinates of Q = ((𝑚_1 𝑥_2 + 𝑚_2 𝑥_1)/(𝑚_1 + 𝑚_2 ), (𝑚_1 𝑦_2 + 𝑚_2 𝑦_1)/(𝑚_1 + 𝑚_2 )) = ((2 × 2 + 1 × (−4) )/(2 + 1), (2 × 1 + 1 × 1)/(2 + 1)) = ((4 − 4)/3, (2 + 1)/3) = (0/3, 3/3) = (0, 1) So, the correct answer is (b)

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo