Carpet tiles are going to be used to cover floor the floor is a 1200mm by 1000mm rectangle each carpet tile is 40 cm by 30 cm rectangle exactly 10 carpet tiles can be used to cover the floor completely show in a labelled sketch as can be done

we know that

the rectangular floor measure 1200 mm x 1000 mm

each carpet tile measure is 40 cm by 30 cm-----> is equal to 400 mm x 300 mm

Divide

1200/400=3 carpet tile

1200/300=4 carpet tile

1000=400+300+300

therefore

the answer in the attached figure

the answer is 99.

step-by-step explanation: