20. Ramkali saved ₹ 5 in the first week of a year and then increased her weekly
20. Ramkali saved ₹ 5 in the first week of a year and then increased her weekly savings by ₹ 1.75. If in the nth week, her weekly savings become ₹ 20.75, find n.CBSE class 10 Mathematics exercise 5.2 question number 20SSLC mathematics exercise 1.2 question number 20

19. Subba Rao started work in 1995 at an annual salary of ₹ 5000
19. Subba Rao started work in 1995 at an annual salary of ₹ 5000 and received an increment of ₹ 200 each year. In which year did his income reach ₹ 7000?CBSE class 10 Mathematicsexercise 5.2 question number 19SSLC mathematicsexercise 1.2 question number 19We have to find the number of terms in the APThe question is solved through animated videoformula nth term of an AP is a + (n-1) d

18. The sum of the 4th and 8th terms of an AP is 24 and the sum of the 6th and 10th terms
18. The sum of the 4th and 8th terms of an AP is 24 and the sum of the 6th and 10th terms is 44. Find the first three terms of the AP.CBSE class 10 Mathematics exercise 5.2 question number 18SSLC mathematics exercise 1.2 question number 18Solved through Animated video

17. Find the 20th term from the last term of the AP.
17. Find the 20th term from the last term of the AP.3,8,13,.… 253. CBSE class 10 Mathematicsexercise 5.2 question number 17SSLC Mathematicsexercise 1.2 question number 17Solved through animated video

16. Determine the AP whose third term is 16 and the 7th term exceeds the 5th term by 12.
16. Determine the AP whose third term is 16 and the 7th term exceeds the 5th term by 12.CBSE class 10 Mathematics exercise 5.2 question number 16SSLC mathematics exercise 1.2 question number 16solved through animated video

15. For what value of n, are the nth terms of two APs: 63, 65, 67, . . . and 3, 10, 17, . .
15. For what value of n, are the nth terms of two APs: 63, 65, 67, . . . and 3, 10, 17, . . equal?CBSE class 10 Mathematics exercise 5.2 question number 15SSLC mathematics exercise 1.2 question number 15Animated videosolved

14. How many multiples of 4 lie between 10 and 250?
14. How many multiples of 4 lie between 10 and 250?CBSE class 10 Mathematicsexercise 5.2question number 14SSLC mathematicsexercise 1.2question number 14The problem is solved through animated video

13. How many three-digit numbers are divisible by 7?
13. How many three-digit numbers are divisible by 7?CBSE class 10 Mathematicsexercise 5.2 question number 13SSLC mathematicsexercise 1.2question number 13The problem is solved through animated video

12. Two APs have the same common difference. The difference between their 100th  terms
12. Two APs have the same common difference. The difference between their 100th  terms is 100, what is the difference between their 1000th  terms?CBSE class 10 Mathematicsexercise 5.2question number 12SSLC mathematicsexercise 1.2question number 12Arithmetic progression

11. Which term of the AP : 3, 15, 27, 39, . . . will be 132 more than its 54th term?
11. Which term of the AP : 3, 15, 27, 39, . . . will be 132 more than its 54th term? The question is taken from CBSE class 10 Mathematics exercise 5.2 question number 11SSLC mathematics exercise 1.2 question number 11and is solved through animated video

10. The 17th term of an AP exceeds its 10th term by 7. Find the common difference.
10. The 17th term of an AP exceeds its 10th term by 7. Find the common difference.The question is taken from CBSE class 10 Mathematics exercise 5.2 question number 10SSLC mathematics exercise 1.2 question number 10and is solved through animated video

If the 3rd and the 9th terms of an AP are 4 and - 8 respectively, which term of this AP is 0
If the 3rd and the 9th terms of an AP are 4 and - 8 respectively, which term of this AP is zero?The problem is taken from SSLC mathematics exercise 1.2 question number 9CBSE class 10 Mathematicsexercise 5.2 question number 9and is solved through animated video

8. An AP consists of 50 terms of which 3rd term is 12 and the last term is 106. Find the 29th term.
8. An AP consists of 50 terms of which 3rd term is 12 and the last term is 106. Find the 29th term.The question is taken from CBSE class 10 Mathematicsexercise 5.2 question number 8SSLC Mathematics exercise 1.2 question number 8and is solved through animated video

7. Find the 31st term of an AP whose 11 th term is 38 and the 16 th term is 73.
7. Find the 31st term of an AP whose 11 th term is 38 and the 16 th term is 73.The question is taken from CBSE class 10 Mathematics exercise 5.2 question number 7SSLC Mathematics exercise 1.2 question number 7And the problem is solved through animated video

3. find the missing terms in the boxes :v) , 38 , , , , -22
3. In the following APs, find the missing terms in the boxes :v) , 38 , , , , -22The problem is taken from CBSE class 10 Mathematics exercise 5.2 question number 3SSLC Mathematics exercise 1.2 question number 3and is solved through animated video

3. find the missing terms in the boxes :iv) -4, , , , , ,6
3. In the following APs, find the missing terms in the boxes :iv) -4, , , , , ,6The question is solved through animated video

3. In the following APs, find the missing terms in the boxes :(iii) 5, , , 9 1/2
3. In the following APs, find the missing terms in the boxes :(iii) 5, , , 9 1/2. The problem is taken from CBSE class 10 Mathematics exercise 5.2. question number 3SSLC mathematics exercise 1.2 question number 3and is solved through animated video

Find the missing terms(ii) , 13, , 3
3. In the following APs, find the missing terms in the boxes : (ii) , 13, , 3The problem is taken from CBSE class 10 Mathematics exercise 5.2 question number 3SSLC mathematics exercise 1.2 question number 3and is solved through animated video

Find the missing term
3. In the following APs, find the missing terms in the boxes :(i) 2, , 26In the given problem first and third terms are given. We have to find second term. The problem is taken from CBSE class 10 Mathematics exercise 5.2SSLC mathematics exercise 1.2and is solved through animated video

2. Choose the correct choice in the following and justify
2. Choose the correct choice in the following and justify :The problem is taken from SSLC mathematics exercise 1.2 question number 2. CBSE class 10 Mathematics exercise 5.2question number 2The problem is solved through animated videoThe formula used is an=a+(n-1)dnth term of an AP

fill in the blanks
1. Fill in the blanks in the following table, given that 𝒂 is the first term, 𝒅 the common difference and 𝒂_𝒏 the nth term of the AP:The problem is taken from SSLC mathematics exercise 1.2 question number 1CBSE class 10 Mathematics exercise 5.2 question number 1and is solved through animated video.The formula used is an = a+(n-1)d

6. Check whether – 150 is a term of the AP : 11, 8, 5, 2 . . .
6. Check whether – 150 is a term of the AP : 11, 8, 5, 2 . . .The problem is solved through animated videoCBSE class 10 Mathematics exercise 5.2SSLC mathematics exercise 1.2 question number 6The formula used is an = a +(n-1)d

5. Find the number of terms in the following APs :(ii) 18, 15 1/2, 13, …….., −47
5. Find the number of terms in the following APs :(ii) 18, 15 1/2, 13, …….., −47The problem is solved through animated videoCBSE class 10 Mathematics exercise 5.2SSLC mathematics exercise 1.2question number 5the formula used is an = a+ (n-1)d

5. Find the number of terms in the following APs :(i) 7, 13, 19, . . . , 205
5. Find the number of terms in the following APs :(i) 7, 13, 19, . . . , 205The problem is solved through animated videoCBSE class 10 Mathematics exercise 5.2SSLC mathematics exercise 1.2question number 5.

Which term of the AP : 3, 8, 13, 18, . . . ,is 78?
Which term of the AP : 3, 8, 13, 18, . . . ,is 78? The problem is solved through animated video.SSLC Mathematics exercise 1.2 CBSE class 10 Mathematics exercise 5.2question number 4The formula used is an = a + (n-1)d