[esseisle]

A rectangular tiled floor is composed of 70 square tiles.The rectangular floor is being rearranged so that 2 tiles will be removed from each row of tiles and 4 more rows of tiles will be added.After the change in layout the floor will still have 70 tiles,and it will still be a rectangle How many rowswere in the tile before change of layout?


a. 4
b. 6
c. 10
d. 14
e. 28

answer is 6


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a ranch has both horses and ponies ,exactly 5/6 ponies have horseshoes.Half of the ponies with horseshoes are Icelandic ponies.What is the min. numner of ponies on the ranch?


a.6
b.8
c.12
d.18
e.24