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GB-17-01-001 · Unitary method

6 notebooks cost £18.00. Work out the cost of 4 notebooks at the same price each.

Proportion: Unitary Method / Ratio Table Application of related method — Booklet p. 18 & p. 22
Method
1) Divide total cost by number of items to find the cost of 1 item
2) Multiply by the required number of items
Worked Example (GB-17-01-001)
1)
One notebook costs £3.00.
2)
£12.00
Ans = £12.00