Question

the 20th term from the end of the AP -5, -10, -15, ...,-1000 is

Answer 1

Answer:

20th term of the series is -100

Step-by-step explanation:

An= a+(n-1)d

a=-5

d=-5

n=20

so An=a+( n-1)d

A20= (-5)+(20-1)(-5)

A20= (-5)+(19)(-5)

A20= (-5)+ (-95)

A20= -5-95

A20=-100

so the 20th term of the series is-100