Question

Q18) Which term of the progression 20, 19 , 18, 17, … is first negative term.

Answer 1

Step-by-step explanation:

The given AP is 20, 19 1/4, 18 1/2, 17 3/4, ..... Let the nth term of the given AP be the first negative term. Then, Hence, the 28th term is the first negative term of the given AP.

Answer 2

Answer:

22 term

Step-by-step explanation:

let consider as nth term is 0

and solve A.P.

t^th term = a + ( n-1 ) d

therefore

t^th term = 0

a = 20

d = -1

0 = 20 + (n -1) -1

21 = n

therefore first negative term.is 22 term