Eric Nicholas K's answer to Sonia's Junior College 2 H2 Maths Singapore question.
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Good evening Sonia! Here are my workings for part ii.
Date Posted:
4 years ago
How did you get " all ≤ 28000" when the total = 30000?
Because the additional requirement that each one needs to have at least 1000 would mean that the most a builder can buy is 28000 bricks.
So you meant each of P,Q,R ≤ 28000
But the equations have already fixed Q = 10000.
So it should be 1000 P ≤ 19000 or 1000 ≤ R ≤ 19000
But the equations have already fixed Q = 10000.
So it should be 1000 P ≤ 19000 or 1000 ≤ R ≤ 19000
Now that you mention it...
I forgot that I have already set Q to 10000.
I forgot that I have already set Q to 10000.
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