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Exam-Style Questions.Problems adapted from questions set for previous Mathematics exams. |
1. | GCSE Higher |
Bruce cycles a distance of 30 km at an average speed of 20 km/h.
He then runs a distance of 8 km at an average speed of 6 km/h.
Work out the total time Bruce takes.
Give your answer in hours and minutes
2. | GCSE Higher |
Strat drove from Wolverhampton to London via Coventry.
(a) Work out Strat's average speed for his total drive from Wolverhampton to London.
Raven drove from Bedrock to Springfield via South Park.
Raven says that the average speed from Bedrock to Springfield can be found by working out the mean of 70 km/h and 50 km/h.
(b) If Raven is correct, what does this tell you about the two parts of Raven's journey?
3. | GCSE Higher |
Mr Finknottle takes his parents for a drive in his car.
He drives the first ten miles in ten minutes then drives at an average speed of 68 miles per hour for 1 hour 45 minutes.
He finds this information about his car:
| Average Speed (s) | \(s \le 65 mph\) | \( s\gt 65 mph\) |
|---|---|---|
| Miles travelled per gallon | 60 | 50 |
Use the information to find how many gallons of petrol he uses during the drive.
4. | GCSE Higher |
The density of water (at 20°C) is 1.09 g/cm3.
The density of blood is 1.60 g/cm3.
Three litres of water are mixed with four litres of blood for a scientific experiment. Work out the density of the mixture giving your answer correct to 2 decimal places.
5. | GCSE Higher |
The distance from Wolverhampton to Cambridge is 115 miles.
Lynn drives from Wolverhampton to Cambridge leaving Wolverhampton at 10:30am. She assumes that her average speed will be 55 mph.
(a) Use Lynn's assumption about her average speed to work out her arrival time in Cambridge.
(b) Lynn's speed was actually lower than her assumption. How does this affect the arrival time?
6. | GCSE Higher |
The following kinematics formula can be used to work out the distance travelled (displacement) of an object travelling with constant acceleration.
$$ s = ut + \frac12 at^2 $$where:
(a) Rearrange the formula to make \(u\) the subject.
(b) What units would be associated with speed in this case?
(c) What units would be associated with acceleration?
7. | GCSE Higher |
Henrietta sells the eggs that the chickens on her farm lay.
She has 220 chickens and each chicken lays 5 eggs each week.
Henrietta gives each chicken 80 grams of chicken feed each day which costs £5.50 for a 20 kg bag.
Work out the cost of the chicken feed for every box of six eggs she sells.
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