Question

Find the missing number to replace the
question mark.

3, 22, 7, 45, 15, ? , 31, ......

▪︎91
▪︎83
▪︎94
▪︎86​

Answer 1

Step-by-step explanation:

3,22,7,45,15,?,31

difference between 3&7 is 4

7&15 is 8

15 & 31is 16

difference between 22 & 45 is 23

means the next number is double of the given number+1

so the next number will be

45+46=91

Answer 2

Answer:

answer is 91

Step-by-step explanation:

3+3=6+1=7

22+22=44+1=45

7+7=14+1=15

45+45=90+1=91

15+15=30+1=31