Question

Which Term Of The Progession 20,19¼,18½,17¾ ... Is the First Negative Term?

Answer 1

Here is ur answer.........

Hope it helps!

Answer 2

Answer:

21

Step-by-step explanation:

let the first negative term be -1

a = 20 , d = -3/4

nth term = a+(n-1)d= 20+(n-1)-3/4

                          0  = 20-3n/4+3/4

                          3n/4 = 83/4

                      => 3n = 83

                             n = 83/3 = 21 2/3

Since no. of terms can't be negative, the whole number should be the answer

=> n= 21