Question

Which term of the sequence 4,9,14,19 ......is 104

Answer 1

Answer:

given

a=4 d=9-4=5 an=104

n=?

an=a+(n-1)d

104=4+(n-1)5

104-4=(n-1)5

100=5n-5

100+5=5n

105=5n

105/5=n

21=n

therefore,21st term is 104