Question

A cubical water tank is filled in 1276 seconds at the rate of 1 litre per 6 sec .calculate ​

Answer 1

Answer:

time taken to fill the tank = 1296 sec

capacity of tank = 1296/6 = 216 litres = 216 * 1000 cm3 = 216000 cm3

so, volume of tank = 216000 cm3

since the tank is cubical, length of tank = (216000)1/3 = 60 cm

Now, internal surface area of tank = 6 * 60 * 60 cm2 = 21600 cm2