Question

Square tiles of side 20 cm are to be laid on the floor of a room 10 m by 4.5 m. how many tiles will be needed? find the cost of putting the tiles at Rs 131.40 per meter

Please explain step by step​

Answer 1

Ans: Number of tiles = 1125

Total cost = Rs. 5913

Step-by-step explanation:

Side of square tile = 20 cm = 0.2 m

Area of tile = Side^2Side

2

= 0.2^20.2

2

= 0.04 m^20.04m

2

Length of room = 10 m

Width of room = 4.5 m

Area of room = Length \times WidthLength×Width

= 10 \times 4.510×4.5

= 45 m^245m

2

Number of tiles required = \frac{45}{0.04}

0.04

45

= 11251125

Cost of putting tiles at 1 sq.m. = 131.40

Cost of putting tiles at 45 sq.m. = 131.40 *45 = Rs. 5913

now ohk can you all follow me