Question

Find number in series : 12,14,17,13,8,_ ​

Answer 1

Answer:

12,14,17,13,8,14,21,13,4

Step-by-step explanation:

for 12 and 14 the difference is +2

for 14 and 17 the difference is +3

for 17 and 13 the difference is -4

for 13 and 8 the difference is -5

for 8 and 14 the difference is +6

for 14 and 21 the difference is +7

Here we are using positive and negative composite numbers in series for each proceeding numbers

i.e, +2, +3, -4, -5, +6,+ 7, -8, -9......

this is the series that can be observed here.