SOLUTION, no peeking!
Concrete Mixing
– Pour the correct amount of the two ingredients into the mixer
Process
Solution
This is the longest problem to solve, with several steps to get to
the right answers. Players may need some clues or prompting if
they get stuck – or a correction if they’re along the right lines but
have just made a basic calculation error.
Players must work out the total volume of concrete required to form
the base of the bridge. They must refer to the scale on the map on
the Planning Table in VR to figure out the width and length of the
bridge.
Once they’ve figured out the total litres, they need to know the ratio
of the two ingredients, for which they must find the bridge load
bearing requirement. The ratios are given on the clue card and also
on the bottom of the weights on the table in VR.
To find the load bearing requirement, they must calculate how many
children could fit on the bridge at one time and multiply that by the
average weight of a child.
Volume:
Bridge width: 2m
Bridge length: 6m
Bridge depth: 0.5m
Total Volume: 6000 litres
Ratio:
Bridge area: 12msq
Child per square metre: 1
Bridge child capacity: 12
Weight of child: 50kg
Bridge load bearing requirement: 600kg
Ratio of aggregate to cement: 1:2
Ingredient Quantities:
Cement: 2000 litres ( 2 bags )
Aggregate: 4000 litres ( 4 bags )
Summary of Contents for Bridge Team
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