Three-quarters of the oil from a 4000-liter tank (that was initially full) was poured into a 20000-liter capacity tanker that already had 3000 liters of oil. How many more liters of oil would be needed to make the large tanker half-full?
Се чаҳорум қисми нафт аз як танки 4000-литрӣ (ки аввал пур буд) ба як танкери 20000-литрӣ, ки аллакай 3000 литр нафт дошт, рехта шуд. Чанд литр нафти иловагӣ лозим аст, то танкери калон нимпур шавад?
How many liters of oil would be poured into the tanker? ** Three-quarters of oil from the initially full 4000-liter tank would be 4000*(3/4)= <<4000*3/4=3000>>3000 liters
How many liters of oil are in the large tanker now? ** In addition to the 3000 liters that were already in the large tanker, there are 3000+3000 = <<3000+3000=6000>>6000 liters in it now.
How many liters of oil would be needed to make the large tanker half-full? ** The tanker would be filled to half capacity by (1/2)*20000 = <<(1/2)*20000=10000>>10000 liters of oil
How many liters of oil are left to reach half capacity? ** There are 10000-6000 = <<10000-6000=4000>>4000 liters left to reach half capacity.
#### 4000
Чанд литр нафт ба танкер рехта мешавад? ** Се-четвяки нафт аз 4000-литрии танк, ки аввал пур буд, 4000*(3/4)= <<4000*3/4=3000>>3000 литр хоҳад буд.  
Чанд литр нафт дар танкери калон ҳоло ҳаст? ** Ба 3000 литр, ки аллакай дар танкери калон буд, 3000+3000 = <<3000+3000=6000>>6000 литр ҳоло дар он аст.  
Чанд литр нафт барои пур кардани танкери калон то ним пур лозим аст? ** Танкер бо (1/2)*20000 = <<(1/2)*20000=10000>>10000 литр нафт то ним пур мешавад.  
Чанд литр нафт боқӣ мондааст, то ба ним пур расад? ** 10000-6000 = <<10000-6000=4000>>4000 литр боқӣ мондааст, то ба ним пур расад.  
#### 4000