Question: rectangular tile each of size 80 cm by 40 cm must be laid horizontally on a rectangular floor of size 130 cm by 230 cm , such that the tiles do not overlap and they are placed with edges jutting against each other on all edges . a tile can be placed in any orientation so long as its edges are parallel to the edges of floor . no tile should overshoot any edge of the floor . the maximum number of tiles that can be accommodated on the floor is :
A) 6
B) 2
C) 8
D) 9
E) 7
Correct answer: d
Grade: 7 | Topic: Geometry | Difficulty: Hard | Standard: 7.G.B.6