Question

Find the cost of whitewashing the walls of a room 10m long ,6 m wide and 4mhigh allowing 25sq m for doors,windows,etc. at ₹50 per m s

Answer 1

Answer:

11,150

Step-by-step explanation:

area of room =2(10*6+6*4+4*10)=2(60+24+40)=2(124)

=248

area of windows and doors=25

area to be whitewashed=248-25=223

cost of whitewashing=223*50=11,150

Answer 2

Answer:

Rs.5150

Step-by-step explanation:

Area of four walls =2lh + 2bh

=2(l+b)*h

=2(10+6)*4

=128 sq.m

allowing 25 sq.m for windows and doors

=128-25

=103sq.m

Cost of whitewash=

103*50

5150