Mathematics · 2017
JEE Main · 8 April 2017, Shift 1 · Q68
If the arithmetic mean of two numbers a and b, a > b >0, is five times their geometric mean, then (a + b)/(a - b) is equal to:
If the arithmetic mean of two numbers a and $\displaystyle \mathrm{b}, \mathrm{a}>\mathrm{b}>0$, is five times their geometric mean, then $\displaystyle \frac{\mathrm{a}+\mathrm{b}}{\mathrm{a}-\mathrm{b}}$ is equal to :
Official answer
(4)
$\displaystyle \frac{5 \sqrt{6}}{12}$
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JEE Main 2017 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.