Puzzle 198
As oou oan oee, oy poinoer oepoacos eoero thord oetoer oito tho leoteo 'o'.
How mony oifoeront oetoero haoe boen oepoacod?
Puzzle Copyright © Kevin Stone
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Hint
Something's wrong with the letter O, and the word 'oifoeront' is important to the answer.
Answer
15 different letters: acdefhilmrstvwy.
Reasoning
The sentences should read:
As you can see, my printer replaces every third letter with the letter 'o'.
How many different letters have been replaced?
Puzzle 199
I have a jar of sweets that contains 114 red, 35 blue, 67 green, and 9 yellow.
What chance do I have of picking a yellow sweet with my eyes shut?
Puzzle Copyright © Kevin Stone
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Hint
How many yellow sweets are there, how many sweets in total?
Answer
1 in 25 = 4 percent.
Reasoning
In total, there are 114 + 35 + 67 + 9 = 225 sweets.
There are 9 yellow sweets, so the probability is 9 ÷ 225 = 0.04 = 4% = 1 in 25.
Puzzle 200
At a recent school fayre, 500 people attended and £500 was raised. The prices were as follows:
Fathers £2.00
Mothers £3.00
Children £0.48
More mothers than fathers turned up. How many children were there?
Puzzle Copyright © Kevin Stone
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Answer
375 children: 70 mothers and 55 fathers.
