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I'm not sure....can anyone else verify this???

Hey... For 3(b)(i) is it necessary to simplify the expression to: 650 + 100n rather than 750 + 100(n-1) ??

yer karljl I used auxilary method (i think it might be a 3unit method) but your method would work too.

Thanks for letting me knw Raymond b.t.w. karljl its 5n/2 not 5n/3 i think :S ??? minor error in ur calc. thanks though.

Hey all, I took the time to write up some solutions (hand written). Let me know what you think of my answers..do you agree or disagree? B.t.w. I did all these in the exam apart from the final question 10(b)(ii). Thanks. Note: Q4(c)(iv) asked for major sector; I found the...