In what time would a cistern be filled by three pipes whose diametres are 1cm, 1(1/3)cm, 2cm, running together, when the largest alone will fill it in 61 minutes, the amount of water flowing in by ea

In what time would a cistern be filled by three pipes whose diametr

1.	In what time would a cistern be filled by three pipes whose diametres are 1cm, 1(1/3)cm, 2cm, running together, when the largest alone will fill it in 61 minutes, the amount of water flowing in by ea
A.	36mints
B.	30mints
C.	25mints
D.	None of these
Answer» B. 30mints

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In what time would a cistern be filled by three pipes whose diametres are 1cm, 1(1/3)cm, 2cm, running together, when the largest alone will fill it in 61 minutes, the amount of water flowing in by ea

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