প্রশ্ন সংশোধন করুন
প্রশ্ন:
A 45000litre water tank is to be filled at a rate of 220litres per minute,estimate to the nearest half hour,how long it will take to fill the tank?
A 45000litre water tank is to be filled at a rate of 220litres per minute,estimate to the nearest half hour,how long it will take to fill the tank?