Question

What is the 9th term from the end of given AP: 5,9,13,................185 *

Answer 1

Answer:

a=5

d=9-5=4

A9=a+(9-1)d

A9 =5+8×4

A9 =5+32

A9 =37

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Answer 2

Step-by-step explanation:

reverse order,

185,.......,13,9,5

a1=185

d= 9-13=-4

n=9

a9= a+8d

= 185+ 8×-4

= 185+ -24

a9 = 161

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