Karen writes the numbers 3 to 11 on her grid. ``` 3 4 5 10 11 6 9 8 7 ``` The total of the first column is 3 + 10 + 9 = 22. Karen says The total of the first column is one less than the total of the second column. Show that this is correct for Karen's grid.

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Karen writes the numbers 3 to 11 on her grid - OCR - GCSE Maths - Question 11 - 2019 - Paper 1

Question 11

Karen writes the numbers 3 to 11 on her grid. ``` 3 4 5 10 11 6 9 8 7 ``` The total of the first column is 3 + 10 + 9 = 22. Karen says The total of the first ... show full transcript

Worked Solution & Example Answer:Karen writes the numbers 3 to 11 on her grid - OCR - GCSE Maths - Question 11 - 2019 - Paper 1

Step 1

Calculate the total of the first column

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Answer

The first column contains the numbers 3, 10, and 9. Therefore, the total is:

$3 + 10 + 9 = 22$ .

Step 2

Calculate the total of the second column

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Answer

The second column contains the numbers 4, 11, and 8. Therefore, the total is:

$4 + 11 + 8 = 23$ .

Step 3

Confirm Karen's statement

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Answer

Karen states that the total of the first column is one less than the total of the second column. We see that:

$22 + 1 = 23$ ,

which confirms that her statement is correct.

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