Question

A hall is 80m long 65m wide. it has to be designed by tiles of 15m*10m. find no of tiles required

Answer 1

it should be
$34 \binom{2}{3}$

Answer 2

area of hall = l × b
= 80×65 m
= 5200 m^2
area of tiles = l × b
= 15×10 m
= 150m^2
number of tiles required = 5200/150
= 34 tiles (approx.)