Q3_Combination_3.2_G10(Retake)

Which of the following situation does not require combination?

• Forming a committee of councilors.

• Assigning rooms to conference participants.

• Selecting the top 3 winners in a singing contest.

• Choosing two literature books to buy from a variety of choices.

Fifteen participants for the MTAP competition were asked to shake hands and introduce themselves with each other. How many handshakes took place?

• 15

• 30

• 45

• 105

There are 13 volleyball teams during the 2019 CARAA. How many games must be played in order for each team to play every other team exactly once?

• 13

• 26

• 78

• 286

There are 7 dots randomly placed on a circle, how many triangles can be formed using the dots as vertices?

• 7

• 20

• 35

• 84

A group of 6 women and 9 men will form four-person committees. How many committees are possible if it must consist 2 men and 2 women?

• 51

• 102

• 540

• 1365

Which of the following requires combination?

• Issuing plate numbers.

• Lining up in paying bills.

• Arranging 6 people in a round table

• Choosing five badminton players from 12 athletes.

Electing an auditor and a treasurer from 8 candidates is an example of ____.

• Permutation

• Combination

• Sets

• cannot be determined

The number of combinations of n objects taken r at a time is denoted by ________.

• n!

Evaluate: 12𝐶3.

• 2,200

• 1,320

• 220

• 132

How many straight lines can be drawn using five points (A, B, C, D, and E), in which no three points are collinear?

• 0

• 5

• 6

• 10