3. Calculate the cost of painting a wall at 4 per square metre if the

1.	3. Calculate the cost of painting a wall at 4 per square metre if the wall is 9 mlong and 6 m high.1wne Rooney low is 100long and 85
Answer» Step-by-step explanation: Length, breadth and HEIGHT of a ROOM are 5 m, 4 m and 3 m. Area of four walls of the room =2h(l+b) =2×3(5+4) =6(9) =54 sq m Area of the ceiling =l×b =5×4 =20 sq cm. Total area of the four walls and the ceiling of the room =54+20 =74 sq cm Cost of white washing = RS 7.50 per sq m Total cost of white washing =74×7.50= Rs 555

3. Calculate the cost of painting a wall at 4 per square metre if the wall is 9 mlong and 6 m high.1wne Rooney low is 100long and 85

Answer»

Step-by-step explanation:

Length, breadth and HEIGHT of a ROOM are 5 m, 4 m and 3 m.

Area of four walls of the room =2h(l+b)

=2×3(5+4)

=6(9)

=54 sq m

Area of the ceiling =l×b

=5×4

=20 sq cm.

Total area of the four walls and the ceiling of the room

=54+20

=74 sq cm

Cost of white washing = RS 7.50 per sq m

Total cost of white washing =74×7.50= Rs 555

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3. Calculate the cost of painting a wall at 4 per square metre if the wall is 9 mlong and 6 m high.1wne Rooney low is 100long and 85​

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3. Calculate the cost of painting a wall at 4 per square metre if the wall is 9 mlong and 6 m high.1wne Rooney low is 100long and 85