Puzzle 753
What number comes next in this sequence:
1 3 5 7 11 {?}
Puzzle Copyright © Kevin Stone
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Hint
A very common sequence, but in base 8!
Answer
13.
Odd numbers expressed in base 8, 11 in base 8 = 13.
Puzzle 754
What letter comes next in this sequence:
A E H L O S {?}
Puzzle Copyright © Kevin Stone
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Hint
Look at the gaps in the alphabetic position.
Answer
V.
Skip three and two letters alternately.
Puzzle 755
At the toy factory, 2 toy makers can make 6 boxes of toys in 3 hours.
By this same reasoning, how many toy makers will it take to make 22 boxes of toys in 5 hours?
Puzzle Copyright © Kevin Stone
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Hint
How many boxes of toys can 1 toy maker make in 5 hours?
Answer
Five toy makers.
Reasoning
How many boxes of toys can 1 toy maker make in 5 hours?
2 toy makers can make 6 boxes of toys in 3 hours
1 toy maker can make 3 boxes of toys in 3 hours
1 toy maker can make 1 box of toys in 1 hour
1 toy maker can make 5 boxes of toys in 5 hours
So 4 toy makers could only make 20 boxes of toy in 5 hours, and we require the extra toy maker to make the remaining 2 boxes of toys.
Puzzle 756
What is the next number in this sequence:
100 365 24 60 {?}
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Hint
The answers are related to time.
Answer
60.
The numbers represent 100 years in a century, 365 days in a year, 24 hours in a day, 60 minutes in an hour and 60 seconds in an minute.
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