SCERT Kerala Class 10 Mathematics/ Arithmetic Sequences

SCERT Kerala Class 10 Mathematics /Arithmetic Sequences is about the practice questions for Class 10 students. Here you can find out extra questions for practice from the Chapter Arithmetic sequences.

SCERT Kerala Class 10 Mathematics/ Arithmetic Sequences – Chapter 1
Extra Questions for Practice / Model Questions
Fill in the blanks:

1. The n th term of the sequence is 4n. Find the 100th term of the sequence?
2. What is the relation between a term and its position in the sequence 1, 4, 9, 16, ——–?
3. What is the algebraic expression for the sequence 1, 3/2, 2, 5/2, 3, 7/2, ———–?
4. A line joining two points on a circle divides the circle into ———- parts.
5. A sequence got by starting with any number and adding a fixed number repeatedly is called an ———– sequence.
6. Find the common difference of the sequence 4, 7, 10, ———–?
7. Compute the 25th term of the sequence 19, 28, 37, ————-?
8. Find the algebraic expression for the sequence 19, 28, 37, ————?
9. The sum of any three consecutive natural numbers is ———– the middle number.
10. The sum of five consecutive natural numbers is ———– times the middle number.
11. The sum of first n even natural numbers is ———–
12. Algebraic expression for the sequence of odd numbers is ——-
13. The algebraic form of the arithmetic sequence 3, 10, 17, ———– is ———-
14. Sum of first 100 natural numbers is ———–
15. Even numbers are numbers divisible by ————-

ANSWERS:

1. 400
2. Each term is the square of its position.
3. (n + 1)/2, for n = 1, 2, 3, ————–
4. 2
5. Arithmetic sequence
6. 3
7. 235
8. 9n + 10
9. Thrice
10. 5
11. n (n + 1)
12. 2n – 1, n = 1, 2, 3, ———
13. 7n – 4, n = 1, 2, 3, ——–
14. 5050
15. 2