Mdm Chua had a trolley of books to shelve. She placed 1/6 of them on the Primary 1 shelf. She then placed 4/5 of the remainder on the Primary 2 shelf. She had 16 books left on the trolley. How many books were on the trolley at first?
Opening the drawing…
MathBrush is being tested with a few parent groups, and every solution on the site is open to them. If you were given a code, it goes in once and this device remembers it. 65 worked examples are free to everyone without one.