(a)        This question required candidates to evaluate decimal expressions in standard form without using calculators or four-figure tables.  It was designed to test the candidates manipulative skills but some candidates resorted to the use of calculators.  They were expected to multiply the numerators and denominator by the appropriate powers of 10 so as to convert the numbers into whole numbers, cancel out the common factors and write the final answer in standard form.  Those who followed the instruction found the question quite cheap.

(b)        This part of the question was satisfactorily done by most candidates, however there were some cases where candidates did not draw the graph.  Some of them were not able to combine the inequalities to have
                        2 < x ≤ 5