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r = 20 p = 12, 50 For methods to find missing value of p: c5 = 100 - (100 × (12/50)) c5 = 100 - 24 = 76 For method to find the missing value of, e.g - Edexcel - GCSE Maths - Question 13 - 2022 - Paper 1

Question 13

r = 20 p = 12, 50 For methods to find missing value of p: c5 = 100 - (100 × (12/50)) c5 = 100 - 24 = 76 For method to find the missing value of, e.g. 100 - (5 × ... show full transcript

Worked Solution & Example Answer:r = 20 p = 12, 50 For methods to find missing value of p: c5 = 100 - (100 × (12/50)) c5 = 100 - 24 = 76 For method to find the missing value of, e.g - Edexcel - GCSE Maths - Question 13 - 2022 - Paper 1

Step 1

For methods to find missing value of p:

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Answer

To calculate the missing value of p when r = 20 and the second value is given as 50, we compute:

$c5 = 100 - \left( 100 \times \frac{12}{50} \right)$

Calculating this gives:

$c5 = 100 - 24 = 76$

Step 2

For method to find the missing value of, e.g. 100 - (5 × (20)):

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Answer

Next, we find the value using the formula:

$c5 = 100 - \left( 5 \times 20 \right)$

Calculating gives:

$c5 = 100 - 100 = 0$

Step 3

For finding both missing values of p:

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Answer

The final answers for missing values are:

The first missing value of p is 76.
The second missing value of p is 0.

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