Question

1 3 6 10, can you write the ninth triangular number as a consecutive number

Answer 1

So, the ninth triangular number can be written as the sum of the consecutive numbers 11, 12, 13, and 14.

Explanation:

The ninth triangular number can be calculated by adding the first 9 natural numbers: 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 = 45.

To write 45 as a consecutive number, we could start with 11 and add consecutive numbers until we reach 45.

11 + 12 + 13 + 14 = 50

So, the ninth triangular number can be written as the sum of the consecutive numbers 11, 12, 13, and 14.