Posts

Showing posts from December, 2018

#DILR-6 (IMS)

Mr. Trump has a number of coins with him. Each coin has two sides, named ‘H’ and ‘T’. He plays a game, which begins with a number of coins all facing either ‘H’ or ‘T’. If the coins face ‘H’ initially, the target of the game is to make all the coins face ‘T’ at the end. Similarly, if the coins face ‘T’ initially, the target of the game is to make all the coins face ‘H’ at the end. The game consists of a number of moves. In each move, Mr. Trump has to flip exactly three coins (from ‘H’ to ‘T’ or from ‘T’ to ‘H’, as the case might be). 1) Mr. Trump begins the game with four coins all facing "T". What is the minimum number of moves he need to meet the target of the game? (a) 2    (b) 3    (c) 4      (d) More than 4 2)Mr. Trump begins the game with five coins,all facing "H".What is the minimum number of moves he need to meet the target of the game? (Write "0" if the target cannot be achieved). 3) ADDITIONAL INFORMATION(for question 3 and 4):-  Mr Trump now f