Question

Suzanna wants to measure a board,but she dosent have a rulet to measure with. However, she does have several copies of a book that she knows is 17 centimeters tall. Suzanna needs a bord at least 3.5 meters ling. Is the board long enough?

Answer 1

Yes, the board is long enough. The board is 357 cm long and Suzanna only needs 350 cm length of the board to meet the requirement of 3.5m. 

1) 21 books * 17cm = 357 cm is the length of the board.
2) 1 meter = 100 cm
   3.5 m * 100cm/1m = 350 cm require length of the board.