Page 50 - NUMINO Challenge_C2
P. 50
Problem solving
1 At least two of David’s friends have their birthdays Key Points
in the same month. What is the least number of
friends that David has? Think of the
unluckiest case.
2 A bakery always has at least a day in a week Think of the
when it sells more than four cakes. What is the pigeonhole principle.
least number of cakes that the bakery sells in a
week?
47Words and Logic
1 At least two of David’s friends have their birthdays Key Points
in the same month. What is the least number of
friends that David has? Think of the
unluckiest case.
2 A bakery always has at least a day in a week Think of the
when it sells more than four cakes. What is the pigeonhole principle.
least number of cakes that the bakery sells in a
week?
47Words and Logic
