Question

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

Answer 1

Answer:

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 -

\frac{19600}{35} = 560

35

19600

=560

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

Step-by-step explanation:

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