Question

What number should replace the question mark? 22, 21, 30, ?, 38, 37, 46​

Answer 1

Answer:

4 th no.option can replace the question mark..

Answer 2

Answer:

39

Step-by-step explanation:

when you will subtract 21 from 22 it will give you 1

when you will subtract 37 from 46 it will yield 9

30 + 9 = 39 because it resembles the last pair of 37 , 46