18. Solve the treasure hunt game which follows the A.P

In a treasure hunt game, some clues ( number) are hidden in various spots collectively forms an \(A.P\). If the number on the \(n^{th}\) spot is $10n+17$, then answer the following question which solve the clues in the game.

 

 

i) Which number is on the second spot?

 

ii) What number is on the ${(n-5)}^{\mathit{th}}$ spot?

 

iii) Find out the number on the 27 spot.

 

iv) Which spot is numbered as 147?