Question

three pipes A,B andC can fill a swimming pool in 6 hours.after working on it together for 2 hours,C is closed and A and B fill the remaining part in 7 hours.find the number of hours taken by C alone to fill the swimming pool ​

Answer 1

Step-by-step explanation:

three pipes A,B andC can fill a swimming pool in 6 hours.after working on it together for 2 hours,C is closed and A and B fill the remaining part in 7 hours.find the number of hours taken by C alone to fill the swimming pool

Answer 2

14 Hours.

Step-by-step explanation:

Part filled in 2 hour = 2/3 = 1/3

Remaining part = 2/3

(A+B)'s 7 hour's work = 2/3

So,(A+B)'s 1 hr work = 2/21

Therefore, C's 1 hour work,

= [(A+B+C)'s 1 hour] - [(A+B)'s 1hr work]

= (1/6 - 2/21) = 1/14.

Therefore, C can fill the pool in 14 hours.