Question

the length of a room is 3 times its height and breadth is 1 whole 1 by 2 times its height the cost of whitewashing the walls @ rupees 1.50 per square metre is rupees 216 find the dimension of the room ​

Answer 1

Answer:

Area =2(x*3x+x*3x/2)3/2=216

Where x is the height of the room.

27x^2 =432

x^2 =16

x=4

Length =12m,width =6m

Height =4m