If three pipes A, B and C in which only C is outlet pipe can fill a tank in \(\frac{102}{5}\) hours. If pipe A and B can fill it in 17 and 15 hours respectively, then the time taken by C to empty the tank is?
Answer & explanation
Correct answer: option 1
Efficiency of A + B - C = 5
⇒ (6 + 2) - C = 5
⇒ Efficiency of C = 3
Time taken by C = \(\frac{102}{3}\) = 34 hours