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General Mathematics Paper 2, Nov/Dec. 2008  
Questions: 1 2 3 4 5 6 7 8 9 10 11 12 13 Main
General Comments
Weakness/Remedies
Strength
Question 4

(a) solve the equation: 2logx – log(1 – x) = log(2 – x).

(b) If Ade gives N5 out of what he has to Chidi, the two of them will have equal amount. If Chidi gives out N5 to Ade, Ade will have twice as much as Chidi. How much did each of them have initially?

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Observation

Many candidates attempted the (a) part of the question and the performance was fair.  However, in expressing the logarithm, some candidates wrongly wrote 
log x 2      = log (2 – x) instead of log ( x2)    = log (2-x)
log(1-x)                                                  (1-x)

The part (b) of the question was poorly done. Their apparent difficulty was in reducing the word problem to simple equations.  Candidates were expected to assign variables say x and y to represent the amount of money Ade and Chidi have respectively.  The required equations are:  x - 5  =  y + 5 (or x – y = 10) and x + 5 = 2(y – 5) i.e. 2y – x = 15. On solving simultaneously, x = N35 and y = N25

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