pls ans 18 ques its urgent
Attachments:
Phillipe:
its from OSWAL i hope!
Answers
Answered by
0
I am sure till cost of wall at the rate of 12 per m. which I got as 720. but after I am not sure.
hope I help u a bit
hope I help u a bit
Attachments:
u have to subtract area of the door
Answered by
2
given dimensions of the room are
l= 6m, b=4m, h= 3m
i) area of the four walls of the room = 2(l+b)h
= 2(6+4)3
= 2*10*3
=60m²---(1)
ii) dimensions of the door
l1= 2.5 m, b1= 1m
area of the door = l1*b1=2.5 *1 = 2.5m²---(2)
area of the white washing = (1)- (2)
=60-2.5 = 57.5 m²
iii) cost of white washing per 1 m² = Rs 12
cost of white washing area = 12*57.5
=Rs690
l= 6m, b=4m, h= 3m
i) area of the four walls of the room = 2(l+b)h
= 2(6+4)3
= 2*10*3
=60m²---(1)
ii) dimensions of the door
l1= 2.5 m, b1= 1m
area of the door = l1*b1=2.5 *1 = 2.5m²---(2)
area of the white washing = (1)- (2)
=60-2.5 = 57.5 m²
iii) cost of white washing per 1 m² = Rs 12
cost of white washing area = 12*57.5
=Rs690
thank u , Phillipe
Similar questions