Question

Find the cost of painting a wall which is 1200cm long and 8m wide, at the
rate of Rs 10 per sq m. Please explain also​

Answer 1

Answer:

Total area for painting

=2h(l+b)

=2*6(10+5)

=12(15)

=180sqm

Per sqm =₹4

For 180sqm,

=180*4

=720₹

The cost of Painting is 720₹ rs

Please mark as brain list please please

Answer 2

Answer :

›»› The cost of painting of a wall are Rs.960.

Given :

• A wall which is 1200 cm long and 8m wide, at the rate of Rs 10 per sq m.

To Find :

• The cost of painting of a wall.

How to solve?

Here in this question we have to find the cost of painting of a wall. So, firstly we need to convert the unit of length of a wall from cm to m, after that we will find the area of a wall after all this we will find the cost of painting of a wall on the basis of conditions given above.

To convert the unit of length of a wall we will divide the length value by 100.

To find the area of a wall we will use the formula to find the area of a rectangle.

Solution :

→ Length of a wall = 1200 cm.

→ Length of a wall = 1200 ÷ 100

→ Length of a wall = 12 m.

⠀⋆ Length of a wall = 12 m.

⠀⋆ Width of a wall = 8 m

As we know that

→ Area of wall = length * width

→ Area of wall = 12 * 8

→ Area of wall = 96 m

Now,

The cost of painting of a wall = 10 * Area of a wall.

→ Cost = 10 * 96

→ Cost = Rs.960

Hence, the cost of painting of a wall are Rs.960.