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17. A man starts repaying a loan as first instalment of Rs. 100. If he increases the instalment by Rs 5 every month, what amount he will pay in the 30th instalment?
27
Oct
17. A man starts repaying a loan as first instalment of Rs. 100. If he increases the instalment by Rs 5 every month, what amount he will pay in the 30th instalment? 17. A man starts repaying a loan as first instalment of Rs. 100. If he increases the instalment by Rs 5 every month [...]
16. Between 1 and 31, m numbers have been inserted in such a way that the resulting sequence is an A. P. and the ratio of 7th and (m – 1)th numbers is 5 : 9. Find the value of m.
27
Oct
16. Between 1 and 31, m numbers have been inserted in such a way that the resulting sequence is an A. P. and the ratio of 7th and (m – 1)th numbers is 5 : 9. Find the value of m. 16. Between 1 and 31 m numbers have been inserted in such a way [...]
15. If a^n + b^n/ a^n-1 + b^n-1 is the A.M. between a and b, then find the value of n.
27
Oct
15. If a^n + b^n/ a^n-1 + b^n-1 is the A.M. between a and b, then find the value of n. 15. If a^n + b^n/ a^n-1 + b^n-1 is the A.M. between a and b then find the value of n. October 27, 2021 Category: Chapter 9 - Sequences and Series , Maths , [...]
14. Insert five numbers between 8 and 26 such that the resulting sequence is an A.P.
27
Oct
14. Insert five numbers between 8 and 26 such that the resulting sequence is an A.P. 14. Insert five numbers between 8 and 26 such that the resulting sequence is an A.P. October 27, 2021 Category: Chapter 9 - Sequences and Series , Maths , NCERT Exemplar Class 11 ,
13. If the sum of n terms of an A.P. is 3n 2 + 5n and its mth term is 164, find the value of m
27
Oct
13. If the sum of n terms of an A.P. is 3n 2 + 5n and its mth term is 164, find the value of m 13. If the sum of n terms of an A.P. is 3n 2 + 5n and its mth term is 164 Find the value of m October 27, 2021 [...]
The ratio of the sums of m and n terms of an A.P. is m^2: n^2. Show that the ratio of mth and nth term is (2m – 1): (2n – 1).
27
Oct
The ratio of the sums of m and n terms of an A.P. is m^2: n^2. Show that the ratio of mth and nth term is (2m – 1): (2n – 1). The ratio of the sums of m and n terms of an A.P. is m^2: n^2. Show that the ratio of mth and [...]
11. Sum of the first p, q and r terms of an A.P. are a, b and c, respectively. Prove that
27
Oct
11. Sum of the first p, q and r terms of an A.P. are a, b and c, respectively. Prove that 11. Sum of the first p b and c`. q and r terms of an A.P. are a respectively. Prove that October 27, 2021 Category: Chapter 9 - Sequences and Series , Maths , [...]
10. If the sum of first p terms of an A.P. is equal to the sum of the first q terms, then find the sum of the first (p + q) terms.
27
Oct
10. If the sum of first p terms of an A.P. is equal to the sum of the first q terms, then find the sum of the first (p + q) terms. 10. If the sum of first p terms of an A.P. is equal to the sum of the first q terms then find [...]
9. The sums of n terms of two arithmetic progressions are in the ratio 5n + 4 : 9n + 6. Find the ratio of their 18th terms
27
Oct
9. The sums of n terms of two arithmetic progressions are in the ratio 5n + 4 : 9n + 6. Find the ratio of their 18th terms 9. The sums of n terms of two arithmetic progressions are in the ratio 5n + 4 : 9n + 6. Find the ratio of their 18th [...]
8. If the sum of n terms of an A.P. is (pn + qn^2), where p and q are constants, find the common difference.
27
Oct
8. If the sum of n terms of an A.P. is (pn + qn^2), where p and q are constants, find the common difference. 8. If the sum of n terms of an A.P. is (pn + qn^2) find the common difference. where P and Q are constants October 27, 2021 Category: Chapter 9 - [...]