Exercise 2

sleepers

More on sleepers

Look at these three tables. Only one is correct. Click on its title.

table 1
number of rails 1 2 3 4 5 6 7 8 9 10
number of sleepers 20 40 60 80 100 110 140 160 180 200
table 2
number of rails 1 2 3 4 5 6 7 8 9 10
number of sleepers 20 40 60 80 100 120 140 160 180 200
table 3
number of rails 1 2 3 4 5 6 7 8 9 10
number of sleepers 20 40 60 80 100 110 140 160 190 200

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