Joshua Sng's answer to Mira's Secondary 4 E Maths question.

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Joshua Sng
Joshua Sng's answer
4 answers (Tutor Details)
1st
The maximum value of b will be the smaller of BOTH n(L) and n(S). This is when a = 0 and b = 120. This occurs when all the students in the clubs and societies also belong to uniform units.