To find Cost of Painting or Tilling when Area and Cost per Unit is given
To find cost of painting or tilling when area and cost per unit is given are discussed here.
To find the cost, find the area and multiply it by cost per sq. unit.
Cost of tiling or painting = area × cost per square unit
For Example:
1. Find the cost of painting a wall of length 80 m and breadth 15 m at the rate of $ 4 per sq. m.
Solution:
Area of wall = length × breadth
Here, length = 80 m and breadth = 15 m.
= 80 × 15 sq. m.
= 1200 sq. m.
Therefore, painting the wall = area × cost per square unit.
Given, rate = $ 4 per sq. m.
= 1200 × 4
= $ 4800.
2. Find the cost of painting a house of length 160 m and breadth 120 m at the rate of $ 5 per sq. m.
Solution:
Area of wall = length × breadth
Here, length = 160 m and breadth = 120 m.
= 160 × 120 sq. m.
= 19200 sq. m.
Therefore, painting the wall = area × cost per square unit.
Given, rate = $ 5 per sq. m.
= 19200 × 5
= $ 3840.
● Area.
To find Area of a Rectangle when Length and Breadth are of Different Units.
To find Length or Breadth when Area of a Rectangle is given.
To find Cost of Painting or Tilling when Area and Cost per Unit is given.
To find the Number of Bricks or Tiles when Area of Path and Brick is given.
Word Problems on Area of a Rectangle
Word Problems on Area of a Square
Worksheet on Area of a Square and Rectangle
Worksheet on Area of Regular Figures
5th Grade Geometry
5th Grade Math Problems
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