ABOUT THIS COURSE

  1. Introduction
  2. Arithmetic Progressions
  3. nth Term of an AP
  4. Sum of First n Terms of an AP
  5. Summary

Maths ( Arithmetic Progressions )

Duration: 120 Minutes | Course Code: 1131

Rs. 590

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Chapter5- Arithmetic Progression

Course for understanding and practice!

An arithmetic progression or arithmetic sequence is a series of numbers in which the specific relation between the consecutive terms is constant, for example 2, 4, 6,8,10. The general form is a, a+d, a+2d……a+ (n-1) d and here ‘a’ refers to the first term and ‘d’ refers to a common difference. Each digit in the series is called a term.

Our experienced and well-educated staffs at ScoreX™ offer the course in a unique and effective way including the NCERT arithmetic progressions.

What comprises the course?

The course covers each topic given in the chapter including the NCERT solutions for class 10 maths arithmetic progressions.

1.      How to find the sum of first nth terms?

S is the sum of first nth term and the formula is Sn=n/2{2a+9(n-1) d.

2.      What is derivation?

To conclude a given formula, there is a derivation which holds immense importance in the maths subject. There is more than one method to derive a formula.

3.      How to find the nth term of an AP?

In AP, ‘a’ means the first term and ‘d’ means difference. For example, a1= a + 0d = a + (1-1) d. thus, the Nth term of an AP can be found by the method an = a + (n-1) d.

4.      How to check a given series is AP or not?

For checking the series, one has to check the difference between the terms. If it is same, the series is AP.

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  1. Q.No 1 - 5, 50, 45, 450, 445, ?, 4445

    4450

    4600

    4550

    4500

    None of the above

    1/10  Next
  2. Q.No 2 - Find the wrong number in the following series. 3252 , 3080 , 2958 , 2876 , 2826

    3080

    2876

    2826

    3252

    None

  3. Q.No 3 - Look at this series: 7, 10, 8, 11, 9, 12, ... What number should come next?

    7

    10

    12

    13

    None

  4. Q.No 4 - 17, 14, 14, 11, 11, 8, 8 What comes next?

    8,5

    5,2

    7,7

    5,5

    None

  5. Q.No 5 - Find the wrong number in the following series. 1250, 1322 , 1452, 1674, 2024 , 2544

    1250

    1674

    2544

    2024

    None

  6. Q.No 6 - During World War I Germany was defeated in the Battle of Verdun on the western front and Romania declared war on the eastern front in the year

    1914 AD

    1915 AD

    1916 AD

    1917 AD

    None

  7. Q.No 7 - 2442 , 1222 , 614 , 312 ,163 , 90 , 55.75 Look at series carefully and find the wrong number

    1222

    312

    90

    614

    None of the above

  8. Q.No 8 - Look carefully for the pattern, and then choose which pair of numbers comes next 9, 16, 23, 30, 37, 44, 51

    59,66

    58,65

    54, 61

    56,62

    None

  9. Q.No 9 - A sum of money at simple interest amounts to Rs. 815 in 3 years and to Rs. 854 in 4 years. The sum is:

    650

    690

    698

    700

    None

  10. Q.No 10 - Look at this series: 2, 1, (1/2), (1/4), ... What number should come next?

    1/3

    1/8

    2/8

    1/16

    None

    Prev 10/10