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  1. M

    anyone worked out Q7 (a) (iii)?

    i got 6.40. i just let t = t-1 for the harbour entrance, since whatever is happening at the wharf is just happening at the harbour entrance an hour earlier, and then set y =6 since the tide has to be greater than 6. The tide will already be greater than 6 since it starts at a high tide at 2am...
  2. M

    What raw marks mite be for this yr?

    I'd say the raw mark for e4 would be about 70/84 to be honest. it was hard but not too hard, marks of mid 70's were very easily attainable.
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