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- Akshaj and Viraj and their father trying to cross a river in a boat. Each of the boys weighs 40 kg, and the father weighs 80 kg. The boat can only hold 100 kg at a time. How many trips will it take them to get everyone over to the other side?
- Raju has three shirts and four ties. How many different combinations of shirts and ties can he make?
- There are four people in a singles badminton tournament. If each player only plays one match with each other player, how many matches are played in all?
- A basketball bounces back up about 1/2 the height from which it is dropped. If a basketball is dropped from 120 metre and keeps bouncing, what is its vertical height after it hits the floor for the 3rd time?