English Medium इयत्ता १० - CBSE Question Bank Solutions for Mathematics

If the numbers (2n – 1), (3n + 2) and (6n – 1) are in AP, find the value of n and the numbers.

How many three-digit natural numbers are divisible by 9?

If the sum of first m terms of an AP is (2m² + 3m) then what is its second term?

What is the sum of first n terms of the AP a, 3a, 5a, ....

What is the 5^th term form the end of the AP 2, 7, 12, ..., 47?

If a_n denotes the nth term of the AP 2, 7, 12, 17, ..., find the value of (a₃₀ - a₂₀).

Write the next term of the AP `sqrt(8), sqrt(18), sqrt(32),`....

Write the next term of the AP `sqrt(2), sqrt(8), sqrt(18),`....

Which term of the AP 21, 18, 15, ... is zero?

Find the sum of the first n natural numbers.

Find the sum of first n even natural numbers.

The first term of an AP is p and its common difference is q. Find its 10th term.

If `4/5`, a, 2 are in AP, find the value of a.

If (2p + 1), 13, (5p - 3) are in AP, find the value of p.

If (2p – 1), 7, 3p are in AP, find the value of p.

If the sum of first p terms of an AP is (ap² + bp), find its common difference.

If the sum of first n terms is (3n² + 5n), find its common difference.

Find an AP whose 4th term is 9 and the sum of its 6th and 13th terms is 40.

Find the sum of the following APs:

2, 7, 12, 17, ... to 19 terms.

Find the sum of the following APs:

9, 7, 5, 3, ... to 14 terms.