Question

1-) Determine o valor de X na sequência:

a) 3,6,7,9,12,16,21, X

b) 3,6,8,16,18,36, X

c) 5,8,7,10,9,12,11, X

d) 2,3,3,5,10,13, X​

Answer 1

Explicação passo-a-passo:

a) 6,7,9,12,16,21,X

+1,+2,+3,+4,+5,+6

6+1=7,7+2=9,9+3=12,12+4=16,16+5=21,21+6=27

b)3,6,8,16,18,36,X

3,2,8,2,18,2

3×2=6,6+2=8,8×2=16,16+2=18,18×2=36,36+2=38

c)5,8,7,10,9,12,11,X

3,1,3,1,3,1,3

5+3=8,8-1=7,7+3=10,10-1=9,9+3=12,12-1=11,11+3=14

d)2,3,3,5,10,13,X

1,1,2,2,3,3

2+1=3,3×1=3,3+2=5,5×2=10,10+3=13,13×3=39