A rectangular courtyard is 57m 50 cm long and 22m broad. Determine the least possible number of square stones of the same size required to pave it

the dimensions of the small stones must divide those of the courtyard.

GCD(5750,2200) = 50
so, the largest stones can be 50x50 cm. Thus the area, in terms of stones is
(5750/50) * (2200/50) = 115*44 = 5060