Question

An artist is arranging tiles in rows to decorate a wall.Each new rows has 2 fewer tiles then the one below it.if the first row has 23 tiles,how many tiles will be in the seventh row.

Answer 1

There will be thirteen

Answer 2

Answer: There will be eleven

Explanation:

First row : 23

second row: 21

third row: 19

fourth row: 17

fifth row: 15

sixth row:13

seventh row: 11