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After visiting my Great Aunt Anne, I travelled home in her old jalopy. The car was old and battered, it had a leak from the petrol tank, and I was stuck in second gear.
This meant that I could only travel along at a steady 30 miles per hour and managed a paltry 20 miles per gallon of fuel.
At the start of the journey I had placed exactly 10 gallons of fuel into the tank. I knew though, that the fuel tank lost fuel at the rate of half a gallon per hour.
Just as I arrived home, the car stopped because it had run out of fuel and I had only just made it.
Hint: These are the first letters of the words: A, C, D, D, I, L, M, N, P, R.
Answer:
acq + uit + tal = acquittal
con + duc + tor = conductor
dec + kch + air = deckchair
dif + fer + ent = different
imp + ort + ant = important
lig + htn + ing = lightning
myt + hol + ogy = mythology
new + sag + ent = newsagent
pol + ice + man = policeman
rec + tan + gle = rectangle
Puzzle 399
A rope swing hangs vertically down so that the end is 12 inches from the ground, and 48 inches from the tree.
If the swing is pulled across so that it touches the tree, it is 20 inches from the ground.
Hint: You might find Pythagoras' theorem very useful [a^{2} + b^{2} = c^{2}].
Answer: 148 inches.
We can use Pythagoras' theorem if we draw an imaginary line across to create a rightangled triangle.
The hypotenuse is equal to the rope's length R. The bottom of the triangle is 48 inches. The vertical side is R  8 (the difference between 20 inches and 12 inches).
Pythagoras' theorem tells us that:
a^{2} + b^{2} = c^{2}
Where c is the hypotenuse.
This gives us:
48^{2} + (R  8)^{2} = R^{2}
^{ }^{ } 2304 + (R  8)(R  8) = R^{2}
^{ } 2304 + R^{2}  16R + 64 = R^{2}
^{ }^{ } 2304  16R + 64 = 0
^{ }^{ } 16R = 2368
^{ }^{ } R = 148
As required.
Puzzle 400
Place letters into the grid such that every row, column, and 2x2 block has letters (in any order) that form a common word.
Each letter is only used once, and no letter is repeated in the rows/cols/blocks.
Across: DUCK, PLUM, TOES, BALE
Down : DOME, PLUS, CUBE, TALK
Boxes : DUMP, LUCK, SOLE, BEAT
Note : Other anagrams of these words are OK as long as they don't change the answer grid.
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