Aptitude Question Id: 105338

If $latex \frac{3}{5}\ th&s=1$ of a cistern is filled in 1 minute, the time needed to fill the rest is :
[A]24 sec
[B]30 sec
[C]36 sec
[D]40 sec

40 sec
Time taken to fill the $latex \frac{3}{5}&s=1$ of the cistern = 60 seconds
∴ Time taken in filling $latex \frac{2}{5}&s=1$ part
$latex = \frac{60\times 5}{3}\times \frac{2}{5} = 40\ seconds&s=1$
Hence option [D] is correct answer.


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