2025 CHS PRELIMS P2 Q1

2025 CHS PRELIMS P2 Q1

Secondary 4
5 marks

Every evening Juline and Evangeline play a game of tic-tac-toe. When they play against each other, Juline has a \(\dfrac25\) chance of winning and Evangeline has a \(\dfrac16\) chance of winning. Find, as a fraction in its simplest form, the probability that

  1. Juline will win on both Monday and Tuesday next week.[1]
  2. Juline will win on either Wednesday or Thursday next week but not on both days.[2]
  3. it will be a draw on Friday next week.[2]

Solution:

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Answer:(i) \(\frac4{25}\) (ii) \(\frac{12}{25}\) (iii) \(\frac{13}{30}\)

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