English Medium Class 10 - CBSE Question Bank Solutions

Find the sum of the first 40 positive integers divisible by 5

Find the values of k for which the roots are real and equal in each of the following equation:

(k + 1)x² + 2(k + 3)x + (k + 8) = 0

Find the sum of all 3 - digit natural numbers which are divisible by 13.

Find the sum of all 3-digit natural numbers, which are multiples of 11.

Find the values of k for which the roots are real and equal in each of the following equation:

x² - 2kx + 7k - 12 = 0

Find the sum 2 + 4 + 6 ... + 200

Find the sum 3 + 11 + 19 + ... + 803

Find the sum 25 + 28 + 31 + ….. + 100

Find the values of k for which the roots are real and equal in each of the following equation:

(k + 1)x² - 2(3k + 1)x + 8k + 1 = 0

Find the sum of the first 15 terms of each of the following sequences having the nth term as

`a_n = 3 + 4n`

Find the sum of the first 15 terms of each of the following sequences having the nth term as

b_n = 5 + 2n

Find the sum of the first 15 terms of each of the following sequences having the nth term as

y_n = 9 − 5n

Find the values of k for which the roots are real and equal in each of the following equation:

5x² - 4x + 2 + k(4x² - 2x - 1) = 0

Find the sum of first 20 terms of the sequence whose nth term is `a_n = An + B`

Find the values of k for which the roots are real and equal in each of the following equation:

(4 - k)x² + (2k + 4)x + 8k + 1 = 0

Find the sum of the first 25 terms of an A.P. whose nth term is given by a_n = 2 − 3n.

Find the values of k for which the roots are real and equal in each of the following equation:

(2k + 1)x² + 2(k + 3)x + (k + 5) = 0

Find the values of k for which the roots are real and equal in each of the following equation:

4x² - 2(k + 1)x + (k + 4) = 0

In an A.P., the sum of first n terms is `(3n^2)/2 + 13/2 n`. Find its 25^th term.

Find the values of k for which the roots are real and equal in each of the following equation:

x² - 2(k + 1)x + (k + 4) = 0