Question 10
Students of a class voted for their favourite colour and a pie chart was prepared based on the data collected.
Which of the following is a reasonable conclusion for the given data?
(a) 120th student voted for blue colour
(b) Green is the least popular colour
(c) The number of students who voted for red colour is two times the number of students who voted for yellow colour
(d) Number of students liking together yellow and green colour is approximately the same as those for red colour.
The elements of sets A , B and C are all colours as follows:
A = { Red , Orange , Yellow , Brown } ,
B = { Blue , Yellow , Green , Brown } ,
C = { Black , Brown , White , Grey }
Then, A U B U C is