MATHS 1 Marks Question

Which sequence is obtained by adding up the hexagonal centred numbers? Find the 5th term of the sequence so obtained.

If we begin the sequence of the powers of 2 with 1 as the first term then what will be the 6th term of this sequence? Find the sum of the first five terms of this sequence.

Which sequence is obtained by adding pairs of consecutive triangular numbers? What is the 5th term of the sequence so obtained?

Which sequence is obtained by adding the terms of all 1's up and down?

What is the 6th term in the sequence of hexagonal centred numbers?

Find the 7th term of the sequence of powers of 2 if 1 is the first term of this sequence.

Which number appears in the sequence of triangular numbers and also in the sequence of square numbers?

Add the first 12 natural numbers up and down. What do you get?

What is the sum of the first 8 odd numbers?

What is the sum of the first 20 natural numbers?

What is the sum of the first 15 terms of the sequence of all 1 's?