Question

Let's see who will answer first and it should be without cheating ​

Answer 1

$16cm$

Length is 16 cm

Answer 2

Answer:

Let length of room be l

Given :- Area = 64sq.cm

breadth = 4cm

Area of room = l*b (l =length and b= breadth)

So , 64 = l*4

64/4 = length

16 cm = length. Answer....

Hence , length of the room is 16cm .

Hope ! solution is helpful for you...