English Medium इयत्ता १० - CBSE Question Bank Solutions for Mathematics

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

4x² + kx + 9 = 0

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

2kx² - 40x + 25 = 0

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

9x² - 24x + k = 0

In an A.P., if the 5th and 12th terms are 30 and 65 respectively, what is the sum of first 20 terms?

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

4x² - 3kx + 1 = 0

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

x² - 2(5 + 2k)x + 3(7 + 10k) = 0

Find the sum of the first 11 terms of the A.P : 2, 6, 10, 14, ...

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

(3k+1)x² + 2(k + 1)x + k = 0

Find the sum of the first 13 terms of the A.P: -6, 0, 6, 12,....

Find the sum of the first 51 terms of the A.P: whose second term is 2 and the fourth term is 8.

Find the sum of the first 40 positive integers divisible by 3

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

kx² + kx + 1 = -4x² - x

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