Introduction to Proportion and Best Buys

Interactive Video
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Mathematics, Business
•
11th Grade - University
•
Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of direct proportion?
The faster you drive, the less time it takes to reach your destination.
The more units you buy in bulk, the less it costs per unit.
The more jars of coffee you buy, the more it costs.
The more workers you have, the less time it takes to build a wall.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If three coffees cost £7.50, how much would five coffees cost using the unitary method?
£15.00
£12.50
£10.00
£17.50
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In an inverse proportion, what happens when one value increases?
The other value increases at the same rate.
The other value doubles.
The other value decreases at the same rate.
The other value remains constant.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If it takes three men four days to build a wall, how long would it take two men?
16 days
8 days
6 days
12 days
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in determining the best buy using the unitary method?
Finding the cost per unit.
Finding the total cost of all items.
Calculating the average cost.
Comparing the total quantities.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method involves finding equal quantities to compare values?
Unitary method
Lowest common multiple method
Inverse proportion method
Direct proportion method
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If Doughs 'R' Us offers 3 doughnuts for £1.05, what is the cost per doughnut?
38p
37p
36p
35p
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