Question 2
Ten small ropes of equal length are knotted together to form a big rope 81 cm long. The question says the knotted area is 1 cm for every rope. How long is each small rope, in centimetres?
Use the source model: join the ten ropes end to end in one open chain; each join reduces the total length by 1 cm.

Enter one whole number, without units.
Use the source model: join the ten ropes end to end in one open chain; each join reduces the total length by 1 cm.

Enter one whole number, without units.