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Percentages · Question 27 of 72

Question 27

MediumOriginal question

Siddharth's marks in a test out of 80 rose from 56 to 70. By how many percentage points did his percentage score rise?

Options for question 27

Show the answer and explanation
CorrectNot quiteAnswer B

Correct answer: B

Explanation

  1. Old percentage = 5680×100=70%\frac{56}{80} \times 100 = 70\%.

  2. New percentage = 7080×100=87.5%\frac{70}{80} \times 100 = 87.5\%.

  3. Rise = 87.5−70=17.587.5 - 70 = 17.5 percentage points.

Worth noting

25 is the percent increase in his marks (14÷56)(14 \div 56), not the rise in percentage points. 14 is the rise in raw marks.

Concept
Percentage points between two percentage scores
Typical time
60 s
Your time
—
The rule this testsPercentage change
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Ten questions from Percentages, at your own pace.

Practise this chapter →

Ten questions from Percentages, at your own pace.

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