93,458 views
23 votes
23 votes
In the sequence: 20, 25, 23, 28, 26, …, what number should come next?

a) 24
b) 31
c) 21
d) 28

User Xavier Sky
by
2.9k points

2 Answers

21 votes
21 votes

Answer:

31

Explanation:

In the sequence they are adding 5 and taking away 2. So if they start with 20, they added 5 and took away 2, it was 23. Then they added 5 again and it was 28, they took away 2 and it was 26. If they add 5, the next number would be 31.

Hope it helped :)

User Square
by
3.0k points
14 votes
14 votes

Answer:

b) 31

Explanation:

20 + 5 = 25

25 - 2 = 23

23 + 5 =28

28 - 2 = 26

pattern: add 5 then subtract 2

since we subtract last, we would add 5 on 26:

26 + 5 = 31

User Eric Anastas
by
2.8k points