Question

the floor of a rectangular room measures 16 m by 11 m. the floor has to be filled with square tiles of length 40 cm. find the number of tiles required ...?
plzzz with explained ans...plz

Answer 1

A particle moving in xy plane according to the equation x=at and y=at(1-bt) where a and b are positive constants and t is time. what will be the equation of the lath of the particle and the symmertric point?

Answer 2

Area of floor =
$16 \times 11 = 176m ^{2} \\ = 176 \times 10000 = 1760000 {cm}^{2}$
Area of tiles =
$40 \times 40 = 1600 {cm}^{2}$
No. of tiles =
$1760000 \div 1600 = 1100$