Question

4. Which term of AP; 20, 24, 28, ...... will be
100 more than its 5th term
(3 Points)​

Answer 1

Answer:

AP:20, 24,48.......

a=20

d=24-20

d=4

nth term=5th term +100

a+(n-1) d=a+(n-1) d+100

20+(n-1) 4=20+(5-1) 4+100

(n-1) 4=120+16-20

(n-1) 4=116

n-1=116/4

n-1=29

n=29+1

n=30

30 th term of the ap will be 100 more than its 5th term