Posted by **Anonymous** on Saturday, January 26, 2013 at 8:03am.

A cuboidal room is 1 and 1/2 as long again as it is broad.

The cost of carpeting the room at the rate of Rs.5 per m sq is Rs.480 and the cost of papering the walls with coloured paper at the rate of Rs.3 per m sq is Rs.360. Find the dimensions of the room .

- maths -
**oluchi**, Saturday, January 26, 2013 at 8:47am
taking d floor of d room

area=l*b

l=1.5x, b=x

A=1.5x*x=1.5xsquare.......eq 1

4rm d price

1sq meter will cost rs.5

dere4 x square meter will cost rs.480

(480*1)/5=96square meters

area=96.......eq 2

96=1.5x^2mspuare

x^2m=64; x=8

lenght =1.5*8=12; breadth =8

4 d height==> rs.3........1sq meter

den rs.360.........xsq meter

x=120square meter

let area= height*breadth

120=h*8

h=15m

dimension=12m by 8m by 15m

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