Ratio & ProportionLow Exam FrequencyAQAEdexcelOCRWJEC

Best Buy

Revise Best Buy in Ratio & Proportion for GCSE Mathematics with 12 exam-style questions and 22 flashcards. This topic appears less often, but it can still pick up marks when it appears in mixed-topic papers.

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What Is a Best Buy?

Introduction 2

Key Methods for Best Buy

Key Facts 3

Method: Finding the Best Buy

Deep Dive 4

Worked Example 1: Basic Price Per Unit

Notes 5

Worked Example 2: Multi-Buy Offer

Notes 6

Worked Example 3: Percentage Discount vs Multi-Buy

Notes 7

Common Mistakes

Notes

Sample Flashcards

What does BOGOF mean?

Buy One Get One Free. You pay for 1 item but get 2 items. Price per item = Normal price ÷ 2.

What does 'best buy' mean?

The option that gives the lowest cost per unit (per gram, per litre, per item). Calculate by dividing total price by quantity.

Sample Questions

Which method correctly compares the value of two products?

A. Compare the total prices
B. Compare the cost per unit (e.g. cost per gram)
C. Choose the one with the larger pack size
D. Choose the one with the smaller pack size

1 markfoundation

Three sizes of shampoo are available: - Travel: 100 ml for 95p - Regular: 300 ml for £2.55 - Family: 500 ml for £4.00 Find the best value size. Show all working.

3 marksstandard

exam-style questions

revision flashcards

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