projectEUREKA - a collection of problems, puzzles and trivia

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Displaying problems 1 - 10 of 19 in total

Problem 1035 - next number - Solution Verified

What is the next number following this pattern?
679, 378, 168, 48, 32, x
Solve it!

7 correct answers, 9 tries, 1 commented solution , 7 solvers: (csilviu) (Northwolves) (sapo) (kamallohia) emily tadena (julyanruby_emily@yahoo.com) (Amorydai) (mihainex) (Show all user statistics)

Submitted by (ilduderino) on May 20 2010 | Discuss

Category patterns

Problem 1034 - next number - Solution Verified

What is the next number following this pattern?

235, 2225, 255, 2235, 257, 22225, x
Solve it!

7 correct answers, 26 tries, 2 commented solutions , 6 solvers: (csilviu) (Northwolves) (sapo) (kamallohia) (xiaofan) (mihainex) (Show all user statistics)

Submitted by (ilduderino) on May 20 2010 | Discuss

Category patterns

Problem 1026 - Next 3 letters - Solution Verified

What are the next three letters in this set?
B, C, D, F, G, H, J, K, L, M, __, __, __
Solve it!

28 correct answers, 41 tries, 2 commented solutions , 10 solvers: (guest) (Northwolves) (lucky99) (elmodog) (mueschel) (flounders) (rpoulin) Brent Fett (Bahamas) (bobbygriffin) (jitendra_theta) (Show all user statistics)

Submitted by (ilduderino) on May 17 2010 | Discuss

Category patterns

Problem 1025 - Next 2 numbers - Solution Verified

What are the next two numbers in the set?

30, 27, 9, 12, 9, 3, 6, 3, 1, x, y
Solve it!

16 correct answers, 17 tries, 1 commented solution , 10 solvers: (lucky99) (guest) (flounders) (mueschel) (pennypecker) (rpoulin) (jitendra_theta) (davec727) (csilviu) (Northwolves) (Show all user statistics)

Submitted by (ilduderino) on May 17 2010 | Discuss

Category patterns

Problem 1024 - Next 2 numbers - Solution Verified

What are the next two numbers? 61, 52, 63, 94, 46, x , y
Solve it!

22 correct answers, 71 tries, 3 commented solutions , 10 solvers: (lucky99) (ihightower) (guest) (kamallohia) (llang) (pennypecker) (rpoulin) Brent Fett (Bahamas) (bobbygriffin) (jitendra_theta) (Show all user statistics)

Submitted by (ilduderino) on May 17 2010 | Discuss

Category patterns

Problem 762 - next in the sequence - Solution Verified

What number belongs at x in this sequence?
34 32 36 46 64 75 50 35 34
16 18 14 22 x 40 35 15 20 12
Solve it!

16 correct answers, 72 tries, 0 commented solutions , 10 solvers: (bobbygriffin) Nirmal Kirtisinghe (nirmalsuki) (guest) (Moonbeam) (Northwolves) (Lolinondoda) Ken Puleo (shibbibidy) Kartikay Kaushik (kartikaykausik) (courteous) (csilviu) (Show all user statistics)

Submitted by (ilduderino) on December 05 2009 | Discuss

Category patterns

Problem 601 - Find the number - Solution Verified

10,11,12,13,14,15,16,17,20,22,24,31,100,x,10000,1111111111111111
Solve it!

9 correct answers, 9 tries, 1 commented solution , 9 solvers: (Moonbeam) (bobbygriffin) Akshay Dixit (akshaydixi) Claudio Meller (ClaudioM) dharmendra hiranandani (dh_iitk) (guest) (yat) (Northwolves) (csilviu) (Show all user statistics)

Submitted by Michael Smith (the_dude) on September 22 2009 | Discuss

Category patterns

Problem 600 - Missing Numbers - Solution Not Verified

Find the missing numbers.
1.     8, 11, 5, 10, 13, 7, 14, a, 11,...
2.     1, 2, 2, 4, 8, 11, b, 37, ...
3.     2, 5, 10, 17,  ...
Solve it!

2 correct answers, 5 tries, 2 commented solutions , 2 solvers: (Moonbeam) (Northwolves) (Show all user statistics)

Submitted by Michael Smith (the_dude) on September 21 2009 | Discuss

Category patterns

Problem 579 - Sequence - Solution Verified

Determine the last term in the following sequence:

            N(3) = 90,

            N(4) = 61,

            N(5) = 52,

  ...
Solve it!

10 correct answers, 20 tries, 1 commented solution , 9 solvers: Ken Puleo (shibbibidy) (Moonbeam) (guest) (scterg) (Northwolves) (SainthillMosson) Brent Fett (Bahamas) (csilviu) (xiaofan) (Show all user statistics)

Submitted by Joe (work) on September 10 2009 | Discuss

Category patterns

Problem 578 - Next in the series - Solution Verified

Determine the next number in the following sequence:
1, 1, 2, 3, 7, 16, 65, . . .
Solve it!

11 correct answers, 11 tries, 1 commented solution , 10 solvers: (bobbygriffin) (Moonbeam) (guest) Akshay Dixit (akshaydixi) Claudio Meller (ClaudioM) (yat) (Northwolves) (SainthillMosson) (csilviu) (xiaofan) (Show all user statistics)

Submitted by Joe (work) on September 10 2009 | Discuss

Category patterns

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