Math, asked by prithvimaricharla, 10 months ago

In an AP if 1st term is 4 , 9th term is 20 then 15th term is

Answers

Answered by aryan1234243

11

Step-by-step explanation:

4=a

20=4+(8)d

20-4=8d=2

t15=4+(15-1)2=4+28=32

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