projectEUREKA - a collection of problems, puzzles and trivia

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Showing 10 problems

Problem 1119 - Coins - Solution Not Verified

Tommy was given 15 coins for his birthday, all in half-crowns, shillings and sixpences. When he added it up he found that he had ...
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0 correct answers, 0 tries, 0 commented solutions

Submitted by (ilduderino) on August 18 2010 | Discuss

Category math

Problem 1060 - how many right triangles - Solution Not Verified

How many right triangles, whose sides are all positive whole numbers, have the property that the area is numerically equal to its ...
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1 correct answer, 1 try, 2 commented solutions , 1 solver: Mickey Gutman (mgutman) (Show all user statistics)

Submitted by (ilduderino) on June 28 2010 | Discuss

Category math, Tags geometry

Problem 1065 - leap years - Solution Not Verified

In our present calendar, leap years occur every 4 years except for centuries that are not divisible by 400. For example 2000 was ...
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1 correct answer, 1 try, 2 commented solutions , 1 solver: (Northwolves) (Show all user statistics)

Submitted by (ilduderino) on June 28 2010 | Discuss

Category logic

Problem 1068 - Helicopter ride - Solution Not Verified

A helicopter pilot is ordered to leave from base A and land at base B which is 27 miles from base A in a direction 50o east of north. ...
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1 correct answer, 1 try, 0 commented solutions , 1 solver: (Amorydai) (Show all user statistics)

Submitted by (ilduderino) on June 28 2010 | Discuss

Category logic

Problem 1072 - Find a+b - Solution Not Verified

When is the first time after high noon (12 o’clock) that the second hand of an accurately set clock bisects the smaller angle formed ...
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1 correct answer, 1 try, 1 commented solution , 1 solver: (Amorydai) (Show all user statistics)

Submitted by (ilduderino) on June 28 2010 | Discuss

Category math, Tags geometry

Problem 1115 - Eggs - Solution Not Verified

A woman was carrying a basket of eggs to market when a passer-by bumped her. She dropped the basket and all the eggs broke. The passer-by, ...
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0 correct answers, 1 try, 0 commented solutions

Submitted by (ilduderino) on August 18 2010 | Discuss

Category logic

Problem 1117 - Mangos - Solution Not Verified

Three men who had a monkey bought a pile of mangoes. At night one of the men came to the pile of mangoes while the others slept and, ...
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1 correct answer, 1 try, 0 commented solutions , 1 solver: (lucky99) (Show all user statistics)

Submitted by (ilduderino) on August 18 2010 | Discuss

Category general

Problem 488 - Prime number generator - Solution Not Verified

If you run the following C program using the command line below, what would be the output?
echo abcd | a.out 10 | a.out 10

(if ...
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1 correct answer, 1 try, 0 commented solutions , 1 solver: (pennypecker) (Show all user statistics)

Submitted by Virgil (virgilm) on July 30 2009 | Discuss

Category programming, Tags obfuscated c c programming

Problem 1037 - Morse - Solution Not Verified

Morse code is a way of encoding character strings using tones of two durations—short and long, separated by gaps. The short tones ...
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1 correct answer, 2 tries, 0 commented solutions , 1 solver: (csilviu) (Show all user statistics)

Submitted by (ilduderino) on May 26 2010 | Discuss

Category programming

Problem 1040 - Longest run - Solution Not Verified

If you flip a fair coin many times in succession, you don’t expect all flips to come up heads or all flips to come up tails. Even ...
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1 correct answer, 2 tries, 0 commented solutions , 1 solver: (Amorydai) (Show all user statistics)

Submitted by (ilduderino) on May 26 2010 | Discuss

Category programming

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