Given: Length of a rectangular piece of land = 500 m and
Breadth of a rectangular piece of land = 300 m
(i) Area of a rectangular piece of land = Length x Breadth
= 500 x 300
= 1,50,000 m²

(ii) Since, the cost of 1m² land = ₹10,000
Therefore, the cost of 1,50,000 m² land = 10,000 x 1,50,000
= ₹1,50,00,00,000

Class 7 Maths Chapter 11 Exercise 11.1

for more answers vist to:
https://www.tiwariacademy.com/ncert-solutions/class-7/maths/chapter-11/