Question

a room is 9 m wide. its floor is covered with 1230 square tiles. Each side of the tile is 30 cm. find the length of the room.​

Answer 1

Step-by-step explanation:

well for this :

to get one side of the room take the area of the area of the tiles × the number of tiles divided by the width you are given ..

NB beware of the units on is in m the other cm....always work with the same units ALWAYS.

1230×0.3×0.3/9× X=110.7/9

=12.3

SO x =12.3cm

Answer 2

Answer:

Length of the room is 12.3 meter.

Step-by-step explanation:

Length of each side of the tile = 30 cm

100 cm = 1 meter

30 cm = $\frac{30}{100}$ = 0.3 meter

Area of each square tile = Length × width

= 0.3 × 0.3 = 0.09 meter²

Total tiles used = 1230

Area of the room = 1230 × 0.09 = 110.7 meter²

Width of the room = 9 meter

Let the length of the room = L meter

Area = Length × width

110.7 meter² = L × 9

L = $\frac{110.7}{9}$

L = 12.3 meter

Length of the room is 12.3 meter.

Learn more to calculate area of the room : https://brainly.in/question/8028390