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a) The ratio 2.5 metres to 60 centimetres can be written in the form 1:n.

Find the value of n.

n =

b) Water flows at a steady rate from a tap.

It takes 40 seconds to fill a 4 litre watering can from the tap.

The rate at which water flows from the tap is halved.

(i) Complete.

4 litres =

cm

(ii) Find the rate at which the water is now flowing from the tap.

Give your answer in cubic centimetres per second (cm/s).

cm/