There are two square rooms Both are of same height The second room is 5m longer than the first room

height of the room =10 m

explanation :
total area of walls for 1st room = 6000/10=600 sq m
total area of walls for 2nd room =8000/10=800 sq m

let length of 1st room be x m
and height of both room be y m.
so total area of 1st room=4xy
so,
4xy=600
=>xy=150 .........(1)
now for 2nd room
length of the room=(x+5)
so,total area of the room the room=4*(x+5)*y
so,
4(x+5)y=200
=> xy+5y=200 .................(2)

on solving (1) and (2) we get
y=10
height of the rooms is 10 m
QED :)
11 years agoHelpfull: Yes(4) No(2)
if the room is square and equal then how second room is gm longer then first room it means that the height of both is same
11 years agoHelpfull: Yes(2) No(0)
If l is length of smaller room and ( l+5 ) is length of other room.

10 paisa=10/100 rs=1/10 rs

area of smaller room= 4*l*h*1/10 =60
=>4lh= 600

area of the larger room= 4*(l+5)*h =800
=>4lh +20h= 800
=> 600 + 20h=800 (from prev. equation)
=>h=10
10 years agoHelpfull: Yes(0) No(1)
total walls area of 1st room = 2*h*(l+b) = 600 ..........................(1)
total walls area of 2nd room = 2*h*(l=5+b) = 800 .....................(2)
so . (l+5+b)/(l+b) = 8/6
l+b= 15
put the value of l+b in 1st eq.
2*h*15 = 600
h = 20
8 years agoHelpfull: Yes(0) No(0)

There are two square rooms. Both are of same height. The second room is 5m
longer than the first room. The rate for papering the walls is 10 paisa per square
meter. The total cost for papering the rooms is Rs 60 and Rs 80. What is the
height of the rooms.