Question

Five square flower beds each of sides 1 m are dug on a piece of land 5 m long and 4 m wide. What is the area of the remaining part of the land?

Answer 1

Side of square bed = 1 m 
Area of square bed = side x side 
= 1 m x 1 m = 1 m²
Area of 5 square beds = 1 x 5 = 5 m² 
Now, Length of land = 5 m 
Breadth of land = 4 m 
Area of land = length x breadth 
= 5 m x 4 m = 20 m² 
Area of remaining part = Area of land – Area of 5 flower beds 
= 20 m² – 5 m² = 15 m²