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.

**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** **From To find Cost of Painting or Tilling when Area and Cost per Unit is given to HOME PAGE**

**Didn't find what you were looking for? Or want to know more information
about Math Only Math.
Use this Google Search to find what you need.**

## New! Comments

Have your say about what you just read! Leave me a comment in the box below. Ask a Question or Answer a Question.