These Ten-Year-Series (TYS) worked solutions with video explanations for 2002 A Level H2 Mathematics Paper 1 Question 7 are suggested by Mr Gan. For any comments or suggestions please contact us at support@timganmath.edu.sg.
2002 A Level H2 Math Paper 1 Question 7
A girl wishes to phone a friend but cannot remember the exact number. She knows that it is a five digit number, that it is even, and that it consists of the digits $2$, $3$, $4$, $5$, and $6$ in some order. Using this information, find the largest number of different wrong telephone numbers she could try.
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