Question

A door of length 2 m and breadth 1 m is fitted in a wall. The length of the wall is 4.5 m and the breadth is 3.6 m (Fig). Find the cost of white washing the wall, if the rate of white washing the wall is ₹ 20 per m2.​

Answer 1

$\huge\mathfrak{\underline{Correct\: question}}$

A door of length 2 m and breadth 1 m is fitted in a wall. The length of the wall is 4.5 m and the breadth is 3.6 m (Fig). Find the cost of white washing the wall, if the rate of white washing the wall is ₹ 20 per m^2

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Given that:-

• A door of length 2 m and breadth 1 m is fitted in a wall.

• The length of the wall is 4.5 m

• Breadth of wall = 3.6m

To find:-

• The cost of white washing the wall, if the rate of white washing the wall is ₹ 20 per m^2.

Answer:-

$\bold{STEP-BY-STEP-EXPLANATION:}$

From the question it is given that,

Length of the door = 2 m

Breadth of the door = 1 m

Length of the wall = 4.5 m

Breadth of the wall = 3.6 m

Then,

Area of the door = $\boxed{Length × Breadth}$

= 2 × 1

= 2 m2

Area of the wall = $\boxed{Length × Breadth}$

= 4.5 × 3.6

= 16.2 m2

So, Area to be white washed = 16.2 – 2 = 14.2 m^2

Cost of white washing 1 m2 area = ₹ 20

Hence cost of white washing 14.2 m^2 area

= 14.2 × 20

= ₹ 284

#BAL

#AnswerWithQuality

Answer 2

Step-by-step explanation:

A door of length 2 m and breadth 1 m is fitted in a wall. The length of the wall is 4.5 m and the breadth is 3.6 m (Fig). Find the cost of white washing the wall, if the rate of white washing the wall is ₹ 20 per m2.