1. In Dhanmondi Lake the current flows at 3 kilometers per hour. The boatmen takes twice as long to travel upstream between two points as it does to travel downstream between the same two points. In still water what is the speed of the boat?
3. which of the following can be used as a search engine to find some data using the internet?
4. Fahim was looking forward ______ the authority for the confirmation of his status.
5. what is the number of bones in a human body?