Answered




The
amount of water flowing into a tank doubles every minute. The tank is full in
an hour. 


When is the tank half full?

Sagot :

Rose28viz
the tank is full when half of an hour ( 30 mins. ) 
15 minutes, why? because it stated that in a minute it doubles, in an hour it will be full, 30x2=60 this is already full, 15x2=30 this is half, 1hr=60min.