Question

A gate having dimensions 2m x 1m is in the wall of 3m x 5m the cost of colouring is rs.100 per msq final the total cost of colouring the wall​

Answer 1

Answer:

The cost of painting the wall is ₹1300

Step-by-step explanation:

Cost of colouring the wall = cost × Area of wall

Area of wall to be painted = Area of wall - area of door

area of wall = 5m × 3m

= 15 m^2

area of door = 2m × 1m

= 2m^2

area to be painted = 15 m^2 - 2m^2

= 13 m^2

cost = 13 m^2 × ₹100

= ₹1300

Answer 2

Given :- A gate having dimensions 2m x 1m is in the wall of 3m x 5m the cost of colouring is rs.100 per msq final the total cost of colouring the wall ?

Solution :-

we know that,

• Area of rectangle shape = Length * Breadth .

so,

→ Area of wall = 3 * 5 = 15 m²

and,

→ Area of gate = 2 * 1 = 2 m² .

now, since gate is in the wall , and colouring will be done on the wall . so, we have to subtract area of gate , in order to find the total area of colouring .

then,

→ Area of colouring = Area of wall - Area of gate = 15 - 2 = 13m² .

therefore,

→ Total cost of colouring the wall = Rate * Area of colouring = 100 * 13 = Rs.1300 (Ans.)

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