16.2. Calculation Formula

Try these first

1. 1.

   What is the total cost of painting a wall with an area of 50 m² at a rate of ₹20/m²?

   Hint

   Remember to multiply area by rate.

2. 2.

   If a room requires painting at ₹25/m² for 30 m², what is the total cost?

   Hint

   Use the formula Total Cost = Area × Rate.

3. 3.

   What is the formula for calculating total painting cost?

   Hint

   Think about how you would find the overall cost.

4. 4.

   True or False: The rate per square meter can vary depending on paint options and surface conditions.

   • True
   • False

   Hint

   Consider variations in painting projects during estimation.

5. 5.

   You are tasked to paint a communal hall of 400 m². If the rate is determined to be ₹30/m², and an additional ₹5/m² for special finishes, calculate the total cost of the job.

   Hint

   Account for the additional costs in your multiplication.

6. 6.

   Calculate the cost if you need to paint a complex structure with three surfaces, measuring 200 m², 150 m², and 100 m². The rate remains ₹40/m², but remember you need two coats on each surface.

   Hint

   Multiply the total area by the rate and the number of coats required.