Question

a room is 14 metre long and 10m wide it has two doors each measuring 2 metre by 1.5 metre and one window measuring 1.5 by 1.2 the cost of whitewashing its for wall at rupees 7.50 per metre square is rupees 990 find the height of room​

Answer 1

Answer:

it's mensuration that's it learn formula it will be easier

Answer 2

Answer:

Height of the room is 2.75 meter.

Step-by-step explanation:

Cost of whitewashing for walls = 7.50 per meter²

Total cost of whitewashing = 990 rupees

Area on which whitewashing is done = 990 ÷ 7.5 = 132 meter²

Area of the 4 walls = 2(length × height) + 2(Width × height)

Let the height be 'h'

2(14h) + 2(10h) = 132

28h + 20h = 132

48h = 132

h = $\frac{132}{48}$

h = 2.75 meter

Height of the room is 2.75 meter.

Learn more to find the cost of whitewash : https://brainly.in/question/7993165