English Medium इयत्ता १० - CBSE Question Bank Solutions

The sum of first 16 terms of the AP: 10, 6, 2,... is ______.

The middle most term(s) of the AP: -11, -7, -3,.... 49 is ______.

In an AP if a = 1, a_n = 20 and S_n = 399, then n is ______.

If the numbers n - 2, 4n - 1 and 5n + 2 are in AP, then the value of n is ______.

If the sum of three numbers in an A.P. is 9 and their product is 24, then numbers are ______.

Find the sum of 12 terms of an A.P. whose nth term is given by a_n = 3n + 4.

The sum of all two digit odd numbers is ______.

The roots of the quadratic equation 6x² – x – 2 = 0 are:

The quadratic equation whose roots are 1:

The quadratic equation whose one rational root is `3 + sqrt2` is

The equation 2x² + kx + 3 = 0 has two equal roots, then the value of k is:

The roots of the quadratic equation `"x" + 1/"x" = 3`, x ≠ 0 are:

The sum of all odd integers between 2 and 100 divisible by 3 is ______.

The roots of the quadratic equation `2"x"^2 - 2sqrt2"x" + 1 = 0` are:

The sum of the roots of the quadratic equation 3x² – 9x + 5 = 0 is:

If the roots of ax² + bx + c = 0 are in the ratio m : n, then:

If one root of the equation x²+ px + 12 = 0 is 4, while the equation x² + px + q = 0 has equal roots, the value of q is:

α and β are the roots of 4x² + 3x + 7 = 0, then the value of `1/α + 1/β` is:

Mohan and Sohan solve an equation. In solving Mohan commits a mistake in constant term and finds the roots 8 and 2. Sohan commits a mistake in the coefficient of x. The correct roots are:

If α and β are the roots of the equation 2x² – 3x – 6 = 0. The equation whose roots are `1/α` and `1/β` is: