Question

a floor of a rectangular room measures 16 cm by 11 m the floor has to be tiled with square tiles of lenght4 cm find the number of tiles required​

Answer 1

GIVEN

RECTANGULAR ROOM WITH;L=16,B=11M

SQUARE TILES OF 40CM[MIND THE UNIT GUYS]

NOW,

AREA OF RECTANGULAR ROOM=L*B

=16*11

=176M^2

AREA  OF ONE TILES=40*40=1600CM^2

NO. OF TILES=176/1600*10000=1100TILES           [IM^2=100CM*100CM}

Answer 2

$\tt ฏGIVEN:−$

$\tt length \: of \: floor = 4m =400cm$

$\tt breadth\: of \: floor= 3m = 300cm$

$\tt length\: of \: single \: tile= 8cm$

$\tt breadth\: of \: single \: tile= 6cm$

$\tt ฏFIND:-$

$\tt no. \: of \: tiles \: reqire = ?$

$\tt ฏSOLUTION:-$

$\tt area \: of \: floor = 400 \times 30 \\ \tt = 120000 {cm}^{2}$

$\tt area \: of \: each \: tile= 8 \times 6 = 4 {cm}^{2}$

$\tt now \: let \: no. \: of \: tiles = x$

$\tt = > area \: of \:hall= x\times area \: of \: each$

$\tt = > 120000 = x(48)$

$\tt = > x = \frac{ \cancel{ 120000}}{ \cancel{48}} = 2500$

$\boxed{ \tt so \: total \: no. \: of \: tile \: is \boxed{2500}}$