Learn the Golden Rule for Proportion Questions

Example: 5 pints of milk cost £1.30. How much will 3 pints cost?

The GOLDEN RULE says: Divide for ONE, Then Times For ALL

Which means: Divide the price by 5 to find how much FOR ONE PINT, then multiply by 3 to find how much FOR 3 PINTS.

So for 1 pint: £1.30 divide 5 = 0.26 = 26p

For 3 pints: 26p x 3 = 78p

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