Question of the Day #337 (6/9/10)

[Kazza]

An AC/DC concert keeps a set of five counter weights to help stagehands move heavy props. The weights can balance exactly any load that is a multiple of 10kg, from 10kg up to a total of the five weights. Give the masses of weights which meet these conditions and allow the stagehands to counterbalance the max possible load.


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[Kazza]

An AC/DC concert keeps a set of five counter weights to help stagehands move heavy props. The weights can balance exactly any load that is a multiple of 10kg, from 10kg up to a total of the five weights. Give the masses of weights which meet these conditions and allow the stagehands to counterbalance the max possible load.

counter Possible
weights loads
10kg 10
20kg 20
40kg 30
80kg 40
160kg 50
60
70
80
90
100
110
120
130
140
150
160
170
:
:
310


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