Question
A group of 77 pupils decided to form groups of 3 in order to take part in a game.
  1. How many pupils were not involved in the game because they could not belong to a group?
  2. In order for everyone to participate in the game, the 77 pupils decided to increase the number of groups from the existing group arrangement. What is the minimum number of pupils in each group such that everyone would belong to a group?
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

A group of 77 pupils decided to form groups of 3 in order to take part in a game.
  1. How many pupils were not involved in the game because they could not belong to a group?
  2. In order for everyone to participate in the game, the 77 pupils decided to increase the number of groups from the existing group arrangement. What is the minimum number of pupils in each group such that everyone would belong to a group?