Question

Quais sao os mutiplos de 6 compreendidos entre 100 e 1000

Answer 1

100/6=16,66==>17*=102 

1000/6=166,66==>166*6=996 

a1=102 
r=6 
an=996 

an=a1+(n-1)r 

996=102+(n-1)6 

996-102+6=6n 

n=150

Answer 2

a1 = 102
an = 996
r = 6
n = ?

an = a1+(n-1)•r
996 = 102+(n-1)•6
996 = 102+6n-6
996-102+6 = 6n
900 = 6n
n = 150