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Day 4: travelled 3/4 leaving 5 miles, which means that 5 miles is 1/4, so 20 miles were left at the start of Day 4.
Day 3: travelled 2/3 leaving 20 miles, which means that 20 miles is 1/3, so 60 miles were left at the start of Day 3.
Day 2: travelled 1/2 leaving 60 miles, which means that 60 miles is 1/2, so 120 miles were left at the start of Day 2.
Day 1: travelled 1/3 leaving 120 miles, which means that 120 miles is 2/3, so 180 miles were left at the start of Day 1.
Of the 180 miles overall, 175 were covered in the 4 days.
Puzzle 44
Imagine a grid comprising 20 X 20 squares.
How many squares, of any size, in total?
[Puzzle Code = ZOIV]
Direct Link: www.brainbashers.com?ZOIV
Hint: How many 1x1 squares are there, how many 2x2?
Answer: 2870.
There is one 20x20, four 19x19, nine 18x18, sixteen 17x17, etc. The sum of the counts is 1 + 4 + 9 + 16 + 25 + 36 + ... + 400 = 2870.
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