Question

In an A.P,if first term is 4,9th term is 20,then 15 th term is

Answer 1

Answer:32

Step-by-step explanation:

a=4

a+8d=20

4+8d=20

1+2d=5

2d=4

d=2

Now 15th term is,

a+14d=4+14(2)

4+28=32

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