CTET Class I to V 2015 Sep Paper

(c) Length of the room = 9 m = 9 × 100 = 900 cm.
Breadth of the room = 7 m = 7 × 100 = 700 cm.
Area of the room = 900 cm × 700 cm.
According to question,
Renu wants to buy tiles such that the floor is tiled without cutting any tile in that condition, the room size is completely divide by tiles size
Going by the options, we get 900 cm × 700 cm is completely divided by 35 cm × 45 cm.