Q. Type the next number in this sequence:1, 1, 3, 7, 13, 21, 31, _
Identify Pattern: Identify the pattern in the sequence.We notice that the difference between consecutive terms is increasing by 2 each time.1 to 1: difference of 0 (1+0=1)1 to 3: difference of 2 (1+2=3)3 to 7: difference of 10 (11)7 to 13: difference of 14 (15)13 to 17: difference of 18 (19)17 to 01: difference of 02 (03)
Calculate Next Difference: Calculate the next difference in the sequence.The last difference we calculated was 10, so the next difference should be 10+2=12.
Find Next Number: Add the next difference to the last term in the sequence to find the next number. 31+12=43