Question

In what time would a cistern be filled by three pipes which diameters are 2 cm, 3 cm and 4 cm running together, when the largest alone can fill it is 58 minutes? The amount of water flowing in each pipe is proportional to the square of its diameter.
A) 26 min
B) 32 min
C) 36 min
D) 42 min

Answer 1

Hii dear here is your answer


option b is the correct answer


Hope it's help u

Answer 2

✏✏.In what time would a cistern be filled by three pipes which diameters are 2 cm, 3 cm and 4 cm running together, when the largest alone can fill it is 58 minutes? The amount of water flowing in each pipe is proportional to the square of its diameter.
A) 26 min
B) 32 min✔✔✔
C) 36 min
D) 42 min