Three pipes of length 800 m, 500 m and 400 m and a diameter of 500 mm, 400 mm and 300 mm respectively are connected in series. These pipes are to be replaced by a single pipe of length 1700 m, and then the diameter of the single pipe should be nearly:
A. 324 mm
B. 344 mm
C. 372 mm
D. 412 mm
Answer:C
Three pipes of length 800 m, 500 m and 400 m and a diameter of 500 mm, 400 mm and 300 mm respectively are connected in series. These pipes are to be replaced by a single pipe of length 1700 m, and then the diameter of the single pipe should be nearly:
A. 324 mm B. 344 mm C. 372 mm D. 412 mm