Question

4. Vishnu wanted to paint a wall with length 30 m and width 10 m . If the cost for one sq.m is Rs.100. Then how much money is required ?
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Answer 1

Answer:

Rs. 30,000.

Step-by-step explanation:

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Answer 2

Given :

Vishnu wanted to paint a wall with dimension -

• Length of wall = 30m
• Width of wall = 10m

• Rate of painting = ₹ 100 / m²

To find :

Money required to paint wall

Formula used :

• Area of rectangle = length × width

Solution :

1. First of all we will find area of wall [ wall is rectangular in shape ]
2. Then we will multiply area by rate of painting

Area of wall = length × width

Area of wall = 30m × 10m

Area of wall = 300m²

Now ,

Money required = cost of painting

Cost of painting = rate of painting × area of wall

Cost of painting = ₹100/m² × 300m²

Cost of painting = ₹ 30000

Therefore money required = ₹30000

ANSWER : ₹30000