Q. Type the next number in this sequence:0, 0, 1, 3, 6, 10, 15, _
Identify Pattern: Identify the pattern in the sequence.The sequence appears to be increasing by consecutive integers: 0(0+0), 0(0+1), 1(1+1), 3(2+1), 6(3+1), (0+0)0(0+0)1, (0+0)2(0+0)3.Pattern: Each term after the first is the sum of the previous term and the next integer in the counting sequence.
Determine Differences: Determine the difference between consecutive terms.0 to 0: +00 to 1: +11 to 3: +23 to 00: 0100 to 03: 0403 to 06: 07The differences are consecutive integers starting from 0.
Find Next Difference: Find the next difference to add to the last term in the sequence.The last difference was +5, so the next difference should be +6.
Calculate Next Term: Calculate the next term in the sequence.Add the next difference to the last term: 15+6=21.