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The question was -
A vinyl record measures 32cm across.
There is a 1 cm margin around the edge and a centre label, which measures 10 cm across.
There are 30 grooves per cm.
How far does the needle travel if the record is played from start to finish?

The answer is - A - 10cm

A vinyl record measures 32cm across.
There is a 1 cm margin around the edge and a centre label, which measures 10 cm across.
There are 30 grooves per cm.
How far does the needle travel if the record is played from start to finish?

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