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5 votes
WHAT is the next sequence

WHAT is the next sequence-example-1

2 Answers

3 votes

Answer:

21

Explanation:

a1=1

a2=a1+2

a3=a2+3

a4=a3+4

...

a(n)=a(n-1)+n

User Voronnenok
by
5.0k points
6 votes

Answer: its 21

Explanation:

the sequence goes up by 1 each time

User Javito
by
4.8k points