Practice Arithmetic Series (1) - Finite Series - IB 10 Mathematics

Practise this section

8 questions

Flashcard drill
2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
Find the sum of the first 5 terms of the series: 1, 3, 5, 7, ...
Show hintHide hint
Identify the first term and common difference before using the formula.
Question 2.
What is the common difference in the series 10, 15, 20, 25?
Show hintHide hint
Subtract any term from the next term in the sequence.
3Question 3.
What is the formula for the sum of the first n terms of an arithmetic series?
Show hintHide hint
Think of the relationship between terms in a sequence.
4Question 4.
True or False: The common difference in an arithmetic sequence can be zero.
- True
- False
Show hintHide hint
Consider what happens if you add zero.
Question 5.
If an arithmetic series has a first term of 10 and a common difference of 3, find the sum of the first 50 terms.
Show hintHide hint
Plug the values directly into the formula.
Question 6.
An arithmetic sequence has a sum of 600, a first term of 5, and a last term of 50. How many terms does it have?
Show hintHide hint
Set up the equation and isolate n.

4 more questions in this section. Enroll free to practise them all.