Math Is Fun Forum

  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

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#30 Re: Puzzles and Games » sdrawkcab slamina » 2016-03-13 20:52:25

I'll give my best shot.

(1) cat tac
(2) dog god
(3) elephant tnahpele
(4) fox xof
(5) giraffe effarig
(6) frog grof
(7) ant tna
(8) iguana anaugi
(9) lamb bmal
(10) monkey yeknom
(11) bird drib
(12) orangutan natugnaro
(13) peacock kcocaep
(14) rhinoceros soreconihr
(15)* tarsier reisrat
(16) bull llub
(17) vulture erutluv
(18) walrus surlaw
(19) zebra arbez
(20) kangaroo ooragnak

Additional notes:
*tarsiers-lead.jpg.653x0_q80_crop-smart.jpg

#31 Re: This is Cool » Fast way to find primes. » 2016-03-13 20:41:47

I see the technique. I tried it in several numbers and it worked.

#33 Re: Puzzles and Games » Dominion » 2016-03-13 20:39:25

Uh huh. Where can I buy it? If it cannot be bought (in the Philippines), is there an online version of it? If none, how would I play it?

#35 Re: Exercises » Factorial! » 2016-03-07 20:13:40

(3) In the actual game you have to find actual words. For this one, I would accept both words and non-words. wink

#40 Re: Help Me ! » [ASK] Can Abacus be Used to Multiply Two Single Digits? » 2016-03-07 02:04:55

Well, I've tried some abacuses online and I had a hard time using it for multiplication tongue So maybe not

#41 Exercises » Factorial! » 2016-03-07 01:37:43

mathaholic
Replies: 4

Well, this kind of sounds like a new thing to you, but factorial. If you know it, then good, because it involves a lot regarding factorials (yeah, permutations and combinations; my specialty) If you don't, I'm sorry but you'll have to Google it so that you can get used to it wink

Anyway, let's start the ball rolling, shall we?

(1) Speaking of balls, imagine there are 4 red balls and 6 orange balls. How many ways are there to pick exactly one of each kind?
(2) In an election, there are five presidential candidates, two of which are female. For vice president, there are six candidates, one of which is female. How many ways are there such that females will be president and vice president?
(3) In the game 4 Pics 1 Word, there are twelve letters to choose from. Say we have the letters J, A, S, O, N, A, N, D, I, Y, Y, A and we want to form a five-letter word. How many such ways are possible?
(4) To make a loveteam, there should be names of people, right? Let's say we have the names JULGAT and JASMINE. If we can get two letters from each of the names, how many such ways are there?
(5) In a lottery, there are 6 numbers to be chosen out of 62 numbers. Julgat bet five tickets.
A - 01 07 12 19 24 31
B - 06 21 22 32 41 56
C - 01 08 21 27 36 53
D - 04 08 17 24 37 52
E - 12 17 30 39 49 61

What is the chance of winning the lottery ticket C?

#48 Re: Maths Is Fun - Suggestions and Comments » Smileys » 2016-03-05 02:13:32

I know right. I actually forgot some smiley syntax, so yeah, we need it...

#50 Re: Dark Discussions at Cafe Infinity » I might be inactive for a while » 2016-03-05 02:06:00

Thank you! big_smile

The torture is almost done. Now I need to study for my final exams this week...

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