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?
Submitted by: AdministratorA house will have four walls...
papers used only for construction of walls!!!!
1st House: 4 *a (side) *h (height) * 10 = 60 =======> 4ah=6 --(1)
Given 10 paise reqd...per construction of 1 square meters
2nd House: 4*(a+5) (side)*h (height) * 10 = 80 =======> 4ah + 20h=8---(2)
Area formula will be horizontal side*vertical height
the plane of wall will be along it's height!..
Solving (1) & (2) we get 20h=2.
Hence, h=0.1m
Submitted by: Administrator
papers used only for construction of walls!!!!
1st House: 4 *a (side) *h (height) * 10 = 60 =======> 4ah=6 --(1)
Given 10 paise reqd...per construction of 1 square meters
2nd House: 4*(a+5) (side)*h (height) * 10 = 80 =======> 4ah + 20h=8---(2)
Area formula will be horizontal side*vertical height
the plane of wall will be along it's height!..
Solving (1) & (2) we get 20h=2.
Hence, h=0.1m
Submitted by: Administrator
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