Questions that deals with fraction of total followed by "fraction of remaining" will usually appear in P5 mid year exams.
Such questions will appear in Paper 2.
Calculator usage is allowed.
Alan gave 1/2 of his marbles to Ben.
He gave 1/4 of the remaining marbles to David.
Alan has now 12 marbles left.
a) How many marbles did he give Ben?
b) How many marbles did Alan have at first?
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