The first pipe will fill one tank in 36 hours. Therefore in one hour it will fill 1/36 tanks. The second pipe will fill one tank in 45 hours. Hence in one hour it will fill 1/45 tanks. Between them, then, the two pipes will fill 1/36 + 1/45 tanks in an hour. This equals 5/180 + 4/180 = 9/180 = 1/20 tanks per hour. Hours per tank is just the reciprocal of tanks per hour, i.e. 1/[1/20] = 20 hours to jointly fill a tank. Incidentally, adding reciprocals and taking an overall reciprocal is a very commonly used trick. It is used to calculate net parallel resistance in electric circuits. Here, time to fill a tank (or resistance to tank-filling!) can be considered analogous to electrical resistance.
18 minutes
Air accumulates in the water pipes after a water softener cycles because the water softener stops the flow of water during this time. This usually only takes 5 to 7 minutes. Air builds up when the pipes get empty.
It takes 15 minutes to get to 0700 and another 58 to reach 758SO ...15 + 58 = 73 minutes
It takes about 5 minutes ... LOL
It would take the too pipes 30 minutes to fill the tank when working together.This figure can be found in the following manner:Find the fill-speed of the first pipe50 minutes to fill 6000 Liters. 6000L/50m gives us 120L/m (liters-per-minute)6000 Liters in 75 minutes = 6000L/75m = 80L/mNext find the speed of the second pipeNow we combine the two rates (120+80), and we find that the pipes have a combined fill-speed of 200L/mFinally, we determine that it takes 30 minutes to fill the tank at 200L/m
it is because it was already cracked
it takes five minutes from one hand to move to another hand on the clock.
At 60mph it takes 22 minutes. At 30mph it takes 44 minutes. At 90mph it takes 11 minutes.
it takes 10 minutes for it to make it there it takes 10 minutes for it to make it there it takes 10 minutes for it to make it there
45-25=20 minutes
refrigerator
From Chennai it takes 3hours 55 minutes.From Delhi it takes 6hours 10 minutes,and from Mumbai it takes 4hours 55 minutes