Question

INTERPOLE 7 MEIOS ARITIMETICOS ENTRE 18 E 50

Answer 1

P.A.(18,a 2 , a 3 ,a 4 , a 5 ,a 6 , a 7 , a 8 , 50)
a 1 = 18
a 9 = 50
a 9 = a 1 +( n - 1 ).r
a 9 = 18 + (9 - 1 ).r
a 9 = 18 + 8 r
50 = 18 + 8 r
50 - 18 = 8 r
32 = 8 r
32 / 8 = r
r = 4
a 2 = a 1 + r
a 2 = 18 + 4 = 22
a 3 = a 2 + r
a 3 = 22 + 4 = 26
a 4 = a 3 + r 
a 4 = 26 + 4 = 30
a 5 = a 4 + r = 30 + 4 = 34
a 6 = a 5 + r = 34 + 4 = 38
a 7 = a 6 + r
a 7 = 38 + 4 = 38
a 8 = a 7 +  r
a 8 = 38 + 4 = 42
a 9 = a 8 + 4 = 42  + 4 = 46
a 10 = 46 + r
a 10 = 46 + 4 = 50

P.A.(18 , 22,26,30,34,38,42,46,50)