Question

3,6,9 can the difference between any two terms of this sequence be 30??

Answer 1

t1 = 3,t2 =6,t3 =9,...

first term = a= 3

common difference = d= t2-t1 = 6-3 = 3

tn = 30.....(given)

by formula,

tn = a+(n-1) d

30 = 3+(n-1) 3

30 = 3+3n-3

30 = 3n

30/3 = n

10 = n

30 is in the given sequence.