Question

the perimeter of a rectangular room whose length is 3 times its breadth is 64 M find the length of a carpet 40 cm wide required for the room

Answer 1

Perimeter = 64m
Let breadth be x                              breadth = 8m
thus, length = 3x                              length = 24m
64 = 2 (3x + x)
64 = 8x                      
x = 64/8
x = 8                                              
Area of carpet = lb
8 x 24 = 192m/sq
breadth = 40cm (given) and length = ?
area = 192m/sq
area = 40 x l
192/0.40 = length
length = 480cm
length = 4.8m

Answer 2

The perimeter of a rectangle room whose length is 3 times its breadth is 64 M find the length of carpet 40 cm wide required for the roomost