## 26. The 3^{rd} and 9^{th} term of an arithmetic progression are -8 and 10 respectively. What is the 16^{th} term?

^{rd}and 9

^{th}term of an arithmetic progression are -8 and 10 respectively. What is the 16

^{th}term?

## 27. If the Arithmetic mean of 7, 5, 13, x and 9 is 10, then the value of x is

## 28. What is the sum of the first 9 terms of an arithmetic progression if the first term is 7 and last term is 55?

## 29. If 7 times the seventh term of an Arithmetic Progression (AP) is equal to 11 times its eleventh term, then the 18^{th} term of the AP will be

^{th}term of the AP will be

## 30. The 7^{th} and 12^{th} term of an arithmetic progression are -15 and 5 respectively. What is the 16^{th} term?

^{th}and 12

^{th}term of an arithmetic progression are -15 and 5 respectively. What is the 16

^{th}term?

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