Question

the length and the breadth of rectangular piece of land are 500 m and 300 respectively find first its area II the cost of the land if one minute square of the land cost 10000

Answer 1

$are \: of \: rectangular \: land \: = l \times b$
$= 500 \times 300$
$= 150000 {m}^{2}$
$cost \: of \: 1 {m}^{2} = 10000$
$cost \: of \: 150000 {m}^{2} = 10000 \times 150000$
$= 1500000000rs$