Best Answer witzar, 12 May 2013 - 12:02 AM

a) How many tiles are ruined on a 4 by 6 floor?b) How about a 63 by 81 floor?

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Started by BMAD, May 08 2013 04:15 PM

Best Answer witzar, 12 May 2013 - 12:02 AM

a) How many tiles are ruined on a 4 by 6 floor?b) How about a 63 by 81 floor?

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8 replies to this topic

Posted 08 May 2013 - 04:15 PM

A rectangular floor is composed of whole square tiles. A diagonal line is drawn (corner to corner) and ruins some of the tiles.

(on a 2 x 5 floor, 6 tiles are ruined, on a 2 x 4, only 4 are ruined.)

a) How many tiles are ruined on a 4 by 6 floor?

b) How about a 63 by 81 floor?

c) Generalize to an m by n floor.

Posted 08 May 2013 - 04:44 PM

Spoiler for solution

- Bertrand Russell

Posted 08 May 2013 - 04:48 PM

Spoiler for

Posted 11 May 2013 - 07:14 PM

a) How many tiles are ruined on a 4 by 6 floor?

b) How about a 63 by 81 floor?

Posted 11 May 2013 - 07:39 PM

a) How many tiles are ruined on a 4 by 6 floor?b) How about a 63 by 81 floor?

Spoiler for looks like

- Bertrand Russell

Posted 11 May 2013 - 07:45 PM

a) How many tiles are ruined on a 4 by 6 floor?b) How about a 63 by 81 floor?

Spoiler for looks like

6 x 4 should be 2

81 x 63 should be 135

Posted 11 May 2013 - 07:55 PM

a) How many tiles are ruined on a 4 by 6 floor?b) How about a 63 by 81 floor?

Spoiler for looks like

6 x 4 should be 2

81 x 63 should be 135

6x4 ruins at least the two corner tiles. Nothing else?

- Bertrand Russell

Posted 11 May 2013 - 09:30 PM

a) How many tiles are ruined on a 4 by 6 floor?b) How about a 63 by 81 floor?

Spoiler for looks like

6 x 4 should be 2

81 x 63 should be 135

6x4 ruins at least the two corner tiles. Nothing else?

i missed typed 6x4 ruins 8

Posted 12 May 2013 - 12:02 AM Best Answer

a) How many tiles are ruined on a 4 by 6 floor?b) How about a 63 by 81 floor?

Spoiler for

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