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In what time a cistern is filled by three pipes of diameter 2cm, 4cm and 6cm respectively. If the time taken by largest pipe to fill the tank is 40 minutes. Amount of water flowing through the pipe is proportional to the diameter of the pipe ?
25.5/7 min
25.3/7 min
23.5/7 min
23.4/7 min
Answer & Explanation Answer – a) 25.5/7 min Explanation : Effeciency ratio = 4:16:36
Total work = 36 x 40 = 1440
now total time taken = 1440 / ( 36+16+4)
1440/ 56 = 25 5/7
By: Manpreet kaur ProfileResourcesReport error
Noorbir Singh
cross section question...kindly explain Maam
updated. kindly check.
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