Question

find the cost of painting o rectangular wall with dimensions 4m and 3m at the rate of rupess 200 per sqare metre​

Answer 1

Answer:

Given:

length = 4m

Breadth = 3m

Rate per square meter = ₹200

Find:

Cost of painting the wall

Solution:

Formula for area of rectangle = l x b

A = 4 x 3

A = 12 sq. metres.

Cost of painting the wall = ₹200 x 12

Thus = ₹2400

Step-by-step explanation:

Answer 2

✬ Cost = Rs 2400 ✬

Step-by-step explanation:

Given:

• Dimensions of rectangular wall is 4 m and 3 m.
• Cost of painting wall per m² is Rs 200.

To Find:

• Cost of painting wall ?

Solution: Here in rectangular wall we have

• Length is 4 m.
• Breadth is 3 m.

First find the area of wall, since wall is rectangular then

★ Area of Wall = Length • Breadth ★

$\implies{\rm }$ Area = 4(3) m²

$\implies{\rm }$ Area = 12 m²

Now, cost of painting per m² of wall = Rs 200

∴ Cost of painting 12 m² of wall = Rs (200)(12)

➭ Total cost = Rs 2400

Hence, cost for painting whole rectangular wall is Rs 2400.