Respuesta :
I think it’d be 3 hours because doing double the work would cut half the time.
Answer:
Will take 8hrs.
Step-by-step explanation:
if pipe 1 takes 6 hrs then the 2nd pipe drains it 3x slower
Which means pipe 1 will take 1 hr slower every 3 hrs taken
and will be at ratio 3:2 for when pipe 2 is used
6 + 2 = 8 (hrs)
Will take 8hrs.