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1). On a Friday night 18 pupils were in detention from a school of 800 pupils.

What percentage of the school were in detention that Friday night?
2). 360 buses run from a depot, but 72 are being repaired.
What percentage of the total are in service ?
3). One day 132 trains arrive at a railway station and 99 are on time. What percentage of them
are late ?
4). In an exam a pupil gets 54 out of 72 marks. What percentage of the exam does he get wrong?
5). A dentist looks at Jean's 32 teeth, 12 of them have fillings.
What percentage don't have fillings?
6).
Billy has 250 school meals in a year. He has chips for 195 meals.
What percentage of school meals does Billy not have chips?

1 Answer

3 votes

Answer:

1. 18/800×100%

=2.25%

2. 288/360×100%

=80%

3. 33/132×100%

=25%

4. 18/72×100%

=25%

5. 20/32×100%

=62.5%

6. 55/250×100%

=22%

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