The path of long 450 cm and 180 cm wide was laid plates of a pryamoygolny form. How many plates were required if the plate has length of 180 cm and width of 50 cm?

111

450 m it =45000sm

1)45000*180=8100000 (see apartment) is the area of a path.

2)180*5=900. - it was required by

of 3)8100000:900=9000 (plates) to p.

Answer's

: 9000 plates were required.

289
Answer add