Puzzle 5
What value of X makes the following correct:
Puzzle Copyright © Kevin Stone
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Hint
The answer is a whole number less than 10.
Answer
3.
Reasoning
We can multiply throughout by 12,
X X X X
- - - + - = -
X 2 4 12
to give:
12 − 6X + 3X = X
12 − 3X = X
12 = 4X
3 = X
As required.
Double-Checking
3 3 3 3
- - - + - = -
3 2 4 12
1 − 1.5 + 0.75 = 0.25
0.25 = 0.25, which confirms that 3 is correct.
Puzzle 6
Using the letters AAEEHHLLLLMMNNOOSSTT complete this grid. The grid reads the same across as down.
Note: this puzzle is not interactive, and the squares cannot be clicked.
Puzzle Copyright © Kevin Stone
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Hint
The bottom word begins with M.
Answer
| C |
H |
A |
S |
M |
| H |
E |
L |
L |
O |
| A |
L |
I |
E |
N |
| S |
L |
E |
P |
T |
| M |
O |
N |
T |
H |
Puzzle 7
Using all of the letters A to Z, each once only, complete these common words.
-e-rd
-u-et
wa-t-
-um-y
-e-er
a-o-e
mi--d
-hew-
hu-i-
-abi-
co--h
ho--e
arg--
Puzzle Copyright © Kevin Stone
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Hint
The first word begins with the letter B.
Answers
-e-rd = beard (BA)
-u-et = quiet (QI)
wa-t- = waltz (LZ)
-um-y = jumpy (JP)
-e-er = fever (FV)
a-o-e = awoke (WK)
mi--d = mixed (XE)
-hew- = chewy (CY)
hu-i- = humid (MD)
-abi- = habit (HT)
co--h = cough (UG)
ho--e = horse (RS)
arg-- = argon (ON)
This puzzle isn't guaranteed to have a unique answer, can you find another?
Puzzle 8
What do you get if …
… you add 2 to 200 four times?
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Hint
Try it once, and then try it again.
Answer
You get 202 each time!
