… you don't have to find the value of every symbol!
The rows add up to 80, which means that the columns must also add up to 80.
24 + ? + 17 + 25 = 80.
? = 14.
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Puzzle 66
If one small rabbit can dig a warren in nine hours, a medium rabbit can dig a warren in 6 hours, and a large rabbit can dig a warren in four and a half hours.
How long will it take one small, one medium, and one large rabbit, to dig a warren if they all work together?
Hint
How much of a warren can each rabbit dig in one hour?
Answer
2 hours.
Reasoning
The small rabbit can dig a warren in nine hours, so digs 1/9 in one hour.
The medium rabbit can dig a warren in 6 hours, so digs 1/6 in one hour.
The large rabbit can dig a warren in four and a half hours, so digs 1/4.5 in one hour.
1 Hour = 1/9 + 1/6 + 1/4.5
To make the denominators all the same, we can multiply through by 18/18 to give:
1 Hour = 2/18 + 3/18 + 4/18
1 Hour = 9/18
1 Hour = 1/2
So in one hour, they have dug half a warren, the whole warren will therefore take 2 hours.
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Puzzle 67
Once you have unscrambled the following countries, the first letters can be anagrammed to make a hidden country. aadnorraehiioptceeegraaaacdgmrsanorwyaaimnoreemny
Reasoning aadnorr = Andorraaehiiopt = Ethiopiaceeegr = Greeceaaaacdgmrs = Madagascaranorwy = Norwayaaimnor = Romaniaeemny = Yemen
a + e + g + m + n + r + y = Germany.
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Puzzle 68
Can you place a different 4-letter word into each of the brackets to create two longer words. drift[----]wind home[----]bench foot[----]mother court[----]stick moth[----]roomquarter[----]ground space[----]yard wild[----]span your[----]less back[----]fighter
In the following example, the word 'book' creates the words 'cookbook' and 'bookcase'.
cook[book]case
