What is the least number of square tiles required to pave the floor of

1.	What is the least number of square tiles required to pave the floor of a room 5 m 60 cm long and 8 m 80 cm broad?1. 882. 843. 994. 77
Answer» Correct Answer - Option 4 : 77 Given: Length of Room = 5 m 60 cm Breadth of Room = 8 m 80 cm Concept: The number of square tiles = Area of floor/Area of 1 Square tile. To find the size of the square tile we need to find the H.C.F of length and breadth of a room. Calculation: Here, 5 m 60 cm = 5 × 100 + 60 = 560 cm 8 m 80 cm = 8 × 100 + 80 = 880 cm Now, H.C.F of 560 cm and 880 cm is 80. ∴ Number of square tiles = (560 × 880)/(80 × 80) ⇒ 7 × 11 ⇒ 77 tiles ∴ The required number of tiles is 77.

What is the least number of square tiles required to pave the floor of a room 5 m 60 cm long and 8 m 80 cm broad?1. 882. 843. 994. 77

Answer» Correct Answer - Option 4 : 77

Given:

Length of Room = 5 m 60 cm

Breadth of Room = 8 m 80 cm

Concept:

The number of square tiles = Area of floor/Area of 1 Square tile.

To find the size of the square tile we need to find the H.C.F of length and breadth of a room.

Calculation:

Here,

5 m 60 cm = 5 × 100 + 60 = 560 cm

8 m 80 cm = 8 × 100 + 80 = 880 cm

Now, H.C.F of 560 cm and 880 cm is 80.

∴ Number of square tiles = (560 × 880)/(80 × 80)

⇒ 7 × 11

⇒ 77 tiles

∴ The required number of tiles is 77.

Discussion

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