Mathematics · 2021
JEE Main · 24 February 2021, Shift 1 · Q73
A man is walking on a straight line. The arithmetic mean of the reciprocals of the intercepts of this line on the coordinate axes is 1/4. Three…
A man is walking on a straight line. The arithmetic mean of the reciprocals of the intercepts of this line on the coordinate axes is $\displaystyle \frac{1}{4}$. Three stones A, B and C are placed at the points $\displaystyle (1,1),(2,2)$ and $\displaystyle (4,4)$ respectively. Then which of these stones is/are on the path of the man ?
Official answer
(2)
B only
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JEE Main 2021 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.