Hint
What must the middle temperature be? Remember that the temperature are in degrees Celsius.
Answer
The temperatures were -6, -2, 2, 6, 10 °C.
Each day increased by a steady 4 degrees.
Reasoning
As the temperature rose steadily each day, we know that the middle temperature (Day 3) was 2 degrees (because the average was 2 degrees).
Since Day 3 was 2 degrees, and there were two negative temperatures, we know that the daily increase must have been at least 3 degrees (otherwise Day 2 would not have been negative).
If we check a daily increase of 3 degrees, the sequence would be -4, -1, 2, 5, 8, but this doesn't work as the product is less than 500.
If we check a daily increase of 4 degrees, the sequence would be -6, -2, 2, 6, 10, which does matches all of the requirements.
If we check a daily increase of 5 degrees, the sequence would be -8, -3, 2, 7, 12, but this doesn't work as the product is more than 2000.
Any larger increase makes the product even larger, so we can stop checking.
So the only possible answer is -6, -2, 2, 6, 10.
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Puzzle 602
Which of the shapes is identical to the first one?
Hint
Try to rotate them around in your head, but watch out for mirror images.
Answer
B.
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Puzzle 603
Many years ago, befor modern educashun in the new millenium, one problem in skools was baseic speeling and grammer. To conbat this and rays acheivement, teechers were adviced to start at the very begining, at the yungest age. Once they had managed to breath new life into leessons, progres came quickly, sucess was then garanteed. How many speeling errors would modern skolars identify in this passage?
Reasoning
Many years ago, before modern education in the new millennium, one problem in schools was basicspelling and grammar. To combat this and raiseachievement, teachers were advised to start at the very beginning, at the youngest age. Once they had managed to breathe new life into lessons, progress came quickly, success was then guaranteed. How many spelling errors would modern scholars identify in this passage?
Hint
Each number in the poem indicates which letter of the answer is being used.
Answer
Wednesday.
Reasoning
Each number in the poem indicates which letter of the answer is being used.
6523 = seed
689 = say
751 = dew
421 = new
Therefore, '751 rhymes with you' is read as 'dew rhymes with you'.
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