# Combinations Questions and Answers PDF Download eBook - 54

Combinations trivia questions and answers, combinations quiz answers PDF 54 to practice math exam questions for online classes. Practice "Permutations, Combinations and Probability" trivia questions and answers, combinations Multiple Choice Questions (MCQs) for online college degrees. Free combinations MCQs, arithmetic progression, series in maths, sum of n terms of a geometric series, notation and value of function, combinations test prep for accredited online college courses.

"^{n}p^{r}", combinations Multiple Choice Questions (MCQs) with choices *(n-r)ι/nι, nι/(n-r)ι, nι/(n+r)ι, and nι/(n-r)ιrι* for ACT subject tests. Practice permutations, combinations and probability questions and answers to improve problem solving skills for ACT prep classes.

## Trivia Quiz on Combinations PDF Download eBook

MCQ: ^{n}p^{r}

- nι/(n-r)ι
- (n-r)ι/nι
- nι/(n+r)ι
- nι/(n-r)ιrι

A

MCQ: If f:x→(-x)² is a function, then ƒ(2) =

- −4
- −2
- 2
- 4

D

MCQ: The sum of an infinite geometric series exist only if the condition on the common ratio r is

- −1 < r < 1
- −1 ≤ r ≤ 1
- r < −1,r > 1
- r ≤ −1,r≥ 1

A

MCQ: The sum of the series 1+1/2+1/2² + … is

- 2
- ³⁄
_{2} ^{4}⁄_{3}^{10}⁄_{9}

A

MCQ: 1,8,15,22,29,36,… is

- G.P
- A.P
- Geometric series
- arithmetic series

B