Question

Which of the following is an example of combination?

a
Form a passcode with 4 digits
b
Choose President, Vice-President and Secretary.
c
Choose 4 students in a class committee out of 35 members
d
Students line up to go to an assembly.

Answer 1

Order matters is permutation

Order doesn't matters is combination

So

The correct combinations are

• Choose President, Vice-President and Secretary.
• Choose 4 students in a class committee out of 35 members