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If the ratio of the speeds of A and B is $3 : 4$, what is the ratio of the times they take to cover the same distance?
A$3 : 4$
B$4 : 3$
C$1 : 1$
D$9 : 16$
Answer & Solution
Correct answer: B. $4 : 3$
Time is inversely proportional to speed for a fixed distance. So time ratio $= \dfrac{1}{3} : \dfrac{1}{4} = 4 : 3$.
Option A is the most common trap (just reusing the speed ratio); option D applies the ratio to distance² incorrectly.
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