Question
There is a group of people, some of them are creative, some are caring and the
remaining 15 are optimistic. The number of caring people is twice the number of
creative people. If the sum of one fourth of the square of creative people along with
all the caring and optimistic ones is equal to square of the number of creative people,
find
(i) the total number of people in the group.
(ii) how many people in the group are creative?