Question

A floor measuring 7 m by 2.8 m is to be covered with tiles measuring 35 cm square. How many tiles
will be needed ?​

Answer 1

☆ Solution ☆

Given :-

• A floor measuring 7 m by 2.8 m is to be covered with tiles measuring 35 cm square.

To Find :-

• How many tiles will be needed ?

Step-by-Step-Explaination :-

Length of the floor = 7m

= 7 × 100 = 700cm

Breadth of the floor = 2.8m

= 2.8 × 100 = 280cm

Now,

Area of the floor = length × breadth unit sq.

Area of the floor = 700 × 280 cm²

Area of the floor = 19600 cm²

Now,

Area of a tile is 35 cm²

Number of tiles required to cover the floor of 19600 cm² are = 19600/35 = 560

Hence,

560 numbers of tiles measuring area 35cm² will cover the floor of area 19600 cm².