GRADE 10 REVIEWER

Which of the following situations or activities involve permutations?

• matching shirts and pants

• Forming different triangles out of 5 points on a plane, no three of which are collinear

• assigning telephone numbers to subscribers

• forming a committee from the members of a club

The product of a positive integer n and all the positive integer less than it is called ______________.

• Powers of n

• Multiples of n

• n-factorial

• n-permutation

Two different arrangements of objects where some of them are identical or the same are called ______________.

• unique permutations

• permutation with repetition

• permutation with restrictions

• circular permutation

If seven students are sitting in around a bonfire and asked to make different arrangements, to what kind of permutation is applied?

• unique permutations

• permutation with repetition

• permutation with restrictions

• circular permutation

A no-beginning and no-end permutation that is in a round format is called _______________________.

• circular permutation

• permutation with restriction

• permutation with repetition

• unique permutation

How many ways can Aling Rosa arrange six different potted plants in a row?

• 720

• 60

• 240

• 180

If the letters in the word AGONCILLO will be arranged, how many possible permutations are there?

Jamaica, Jericho, Yanrie, Denmark and Marlyn are sitting around a round table. How many ways can they sit around the table?

• 12

• 24

• 48

• 64

Which of the following expressions represents the phrase “the combination of n objects taken r at a time”?

• nPr

• nCr

• Ncr

• NpR

How many ways can three representatives be chosen from 10 finalists in a contest?

• 60

• 72

• 120

• 144