6 practice questions for this chapter, gradeable instantly.
Q1
Solve the following question:
Q2
A school is selecting students from a group of to represent the school in a debate competition. The number of ways through which the students can be selected is
Q3
is equal to
Q4

A man goes to a bakery where he finds Samosas (), Vegetable rolls () and Potato Cutlets (). They are served with Chatni () or Ketchup (). Which tree diagram illustrates the given situation for all the possible combinations?
Q5
The possible number of arrangements of the letters of the word SYSTEMATIC, taken all at a time, is equal to
Q6
If , then the value of is equal to