Question

a wooden sheet is 15m long and 6m broad. it has to be painted on both sides. find the cost of painting at rs 30 per square metre.

Answer 1

Answer:

area of rectangle=l×b

=15m×6m

=90m^2

= 2×90m^2

=180m^2

cost of painting per metre= rs 30

cost of 180 m^2 = 180× 30=Rs 5400

Step-by-step explanation:

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Answer 2

Given:

Length of sheet=15m

Width of sheet=6m

Rate of painting=Rs.30/$m^{2}$

To find:

The cost of painting

Solution:

The total cost is Rs.5,400.

Area of the wooden sheet=length of sheet ×width of sheet

=15×6

=90$m^{2}$

The total area of both sides=2×area of the wooden sheet

=2×90

=180$m^{2}$

Now, we will simply obtain the product of the total area and the rate of painting the sheet.

The total cost=Rate of painting× area of the wooden sheet

=30×180

=Rs.5,400

Therefore, the cost is Rs.5,400.