IGCSEMaths A: HigherEdexcelFlashcards

Ratio Problem Solving (Edexcel IGCSE Maths A)

Flashcards

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  • FrontRatios & FDP

    True or False?

    If the ratio of cats to dogs is 4 : 1, then 25% of all animals are dogs.

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Cards in this collection (5)

  • True or False?

    If the ratio of cats to dogs is 4 : 1, then 25% of all animals are dogs.

    False.

    If the ratio of cats to dogs is 4 : 1, then 20% of all animals are dogs. A percentage is out of 100 so multiply both parts of the ratio by 20 to make the total 100, 80 : 20.

  • Students choose one subject out of Biology and Chemistry.

    If 49% of students choose Biology, what is the ratio between students studying Biology to Chemistry?

    Students choose one subject out of Biology and Chemistry.

    If 49% of students do Biology, then the ratio of Biology to Chemistry is 49 : 51.

  • If x is half of y, find the ratio of x space colon space y.

    If x is half of y, then y is double x. The ratio x space colon space y can be written as 1 space colon thin space 2.

  • If x space colon space y space equals space 1 space colon thin space 3 and y space colon thin space z space equals space 2 space colon thin space 5, what is the first step to finding the ratio x space colon thin space y space colon space z?

    If x space colon space y space equals space 1 space colon thin space 3 and y space colon thin space z space equals space 2 space colon thin space 5, the first step to finding the ratio x space colon thin space y space colon space z is to find equivalent ratios so that the value for y is the same for both.

  • True or False?

    If x space colon space y space equals space 1 space colon thin space 3 and x space colon thin space z space equals space 1 space colon thin space 2, then x space colon thin space y space colon space z equals 1 space colon space 3 space colon space 2.

    True.

    If x space colon space y space equals space 1 space colon thin space 3 and x space colon thin space z space equals space 1 space colon thin space 2, then x space colon thin space y space colon space z equals 1 space colon space 3 space colon space 2.

1. Numbers & the Number System
2. Equations, Formulae & Identities
3. Sequences, Functions & Graphs
4. Geometry & Trigonometry
5. Vectors & Transformation Geometry
6. Statistics & Probability