Question

A lawn of 20m long and 7.5m broad is to be paved with tiles each measuring 3 cm by 2.5 dm . Find the number of tiles

Answer 1

Solutions :-

Given :
Length of lawn = 20 m = 2000 cm
Breadth of lawn = 7.5 m = 750 cm

Dimension of each tiles = 3 cm × 2.5 dm = 3 cm × 25 cm


Find the number of tiles :-

Number of tiles = Area of lawn / Area of each tiles
= (2000 × 750)/(3 × 25)
= 20000


Hence,
Number of tiles = 20000

Answer 2

Solutions :-

We have,
A lawn of 20 m long and 7.5m broad.
It is to be paved with tiles each measuring 3 cm by 2.5 dm.


Area of lawn = (Length × Breadth) sq. units
= (20 × 7.5) m²
= 150 m² = 1500000 cm²


Area of each tiles = 3 cm × 2.5 dm
= 3 cm × 25 cm
= 75 cm²


Number of tiles = Area of lawn / Area of each tiles
= 1500000/75
= 20000


Answer : Number of tiles = 20000