If `4/5` of a water tank is filled in 1 hour, how much time will be required to fill the rest of it? (a)20 minutes (b) 15 minutes (c)12 minutes (d) 10 minutes

If (4)/(5) of a water tank is filled in 1 hour,how much time will be required to fill the rest of it? 20 minutes (b) 15 minutes 12 minutes (d) 10 minutes

If 3/5 th oif a cistern is filled in 30 minutes, how much more time will be required to fill the rest of it?

If 4/5 of a cistern is filled in 1 minute,how much time will be required to fill the empty cistern?

If 3/ 5^"th" of a cistern is filled in 1 minute, how much more time will be required to fill the of it?

A bacterial cell divides once every minute and takes an hour to fill a cup. How much time will it take to fill half the cup ? (a) 60 minutes (b) 59 minutes (c) 30 minutes (d) 15 minutes

Bacterial cell divides every one minute. It takes 15 minutes a cup to be one-fourth full. How much time will it take to fill the cup ? (a) 30 minutes (b) 45 minutes (c) 60 minutes (d) 17 minutes

The flowers in a basket double every minute and the basket gets full in one hour.In how much time,the basket was (1)/(32) full? (a) 12 minutes (b) 32 minutes (c) 45 minutes (d) 55 minutes