CBSE NCERT Solutions Chapter 5 Arithmetic Progressions Exercise 5.3 Question 9
9. If the sum of first 7 terms of an AP is 49 and that of 17 terms is 289, find the sum of first n terms.
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CBSE NCERT Solutions Chapter 5 Arithmetic Progressions Exercise 5.3 Question 9
9. If the sum of first 7 terms of an AP is 49 and that of 17 terms is 289, find the sum of first n terms.
CBSE NCERT Solutions Chapter 5 Arithmetic Progressions Exercise 5.3 Question 8
8. Find the sum of first 51 terms of an AP whose second and third terms are 14 and 18 respectively.
CBSE NCERT Solutions Chapter 5 Arithmetic Progressions Exercise 5.3 Question 7
7. Find the sum of first 22 terms of an AP in which d = 7 and 22nd term is 149.
CBSE NCERT Solutions Chapter 5 Arithmetic Progressions Exercise 5.3 Question 6
6. The first and the last terms of an AP are 17 and 350 respectively. If, the common difference is 9, how many terms are there and what is their sum?
CBSE NCERT Solutions Chapter 5 Arithmetic Progressions Exercise 5.3 Question 5
5. The first term of an AP is 5, the last term is 45 and the sum is 400. Find the number of terms and the common difference.