the cost of property the 4 walls of roomat 75p/m2 is the rs 240. the height of the room is 5m. find the length and breadth of the room if they are in ratio 5:3. pls help its urgent
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1
Answer:
Given, cost of papering the wall is Rs 240 at 75 p per sq. m. Height of the room is 5m and length and breadth are in ratio 5:3.
Areaofwalltobepapered=
costofpaperingpermeter
costofpaperingthewall
=
0.75
240
=320m
2
Height of wall= 5 cm.Let length of wall be 5x and breadth be 3x.
Surface area of four walls=2h(l+b)
320=2×5(5x+3x)
320=10(8x)
320=80x
x=4
Length of wall=5x=5×4=20m.
Breadth of wall=3x=3×4=12m
Answered by
0
Answer:
length of wall = 57m
breathe of wall = 12m
hope it help
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