You know your telephone number (7 digits)
Take the first 3 digits
Multiply that by 80
Add 1
Multiply by 250
Add last 4 digits of phone number
Again add the last 4 digits of phone number
Minus 250
Divide them by 2
Surprised by the answer you get. What is that?
2007-12-21 01:07:05 · 16 answers · asked by chidambaram k 6 in Science & Mathematics ➔ Mathematics
Yes.
Maths rules are consistent. Math is can be as hard or as easy you make it. The riddle you present is creative.
Cheers!
2007-12-21 01:14:35 · answer #1 · answered by rutgersgroup 4 · 0⤊ 0⤋
Not at all surprised. The result is your phone number. Look at it mathematically. Suppose your phone number is x - y, where the - isn't subtraction, but just the dash between x, a three-digit number, and y, a four-digit number. The described operations give you
((80x + 1)*250 + y + y - 250) / 2,
which can easily be reduced as follows:
(20000x + 250 + 2y - 250) / 2
10000x + y
And clearly this would be the original phone number in numerical form, since multiplying the three-digit number x by 10000 causes x to be followed by four zero digits so that when you add y you have the phone number (but without any punctuation between x and y). And good catch, pjpudge1414.
2007-12-21 01:11:32 · answer #2 · answered by DavidK93 7 · 4⤊ 1⤋
It seems to be mathematically explainable . The mechanism involved is how to get a number double of a seven digit number. And that is the trick.
2007-12-22 18:27:15 · answer #3 · answered by sb 7 · 0⤊ 0⤋
7 females*7 backpacks*7 cats*7 kittens = 7 females, 343 cats, and 2401 kittens (little cats). aside from the bus driving force there are 14 girlie legs, 1372 cat legs, and 9604 kitten legs yum. entire of 10990 legs. it truly is my answer yet easily a bus (aside from the seats is approximately 12 feet extensive*6 feet tall*approximately 50 feet long=element of 3600 cubic feet meaning that that must be an extremely cramped journey and somebody could get overwhelmed ultimately. besides they (probable) does not bodily have the potential to extra healthful interior it. females = 1680 lbs cats = 2401 lbs kittens = 9604 lbs idk what buses can carry however the bus seats approximately seventy 4 those with an commonplace of a hundred and twenty each and each is approximately 8000 lbs meaning that the bus could be overfilled, overloaded, and not even close to to being secure adequate to tension.
2016-12-11 10:50:41 · answer #4 · answered by sanda 4 · 0⤊ 0⤋
Just algebra. Follow what the first poster wrote and you will know how and why it works. There are many trick like this. People who do not know algebra are easily cheated :-)
Math is beautiful, you see :-)
Kempos
2007-12-21 01:26:46 · answer #5 · answered by Anonymous · 0⤊ 1⤋
ohmygosh! Thats so weird! I got my actual cell-phone number. Thats so cool =] Merry Christmas!
2007-12-21 01:15:29 · answer #6 · answered by Roberta 2 · 0⤊ 1⤋
You may loose 10 points.
2007-12-21 01:59:18 · answer #7 · answered by Mano 7 · 0⤊ 1⤋
Giving work for the brain of mathematicians. This will help to sharpen one's brain.
2007-12-21 01:15:06 · answer #8 · answered by geeyen 7 · 0⤊ 1⤋
cool,
hey guy too brilliant more grease, Merry Xmas
2007-12-21 02:01:09 · answer #9 · answered by chokolate 2 · 0⤊ 1⤋
i just wasted 30 seconds of my life
2007-12-21 01:14:34 · answer #10 · answered by Anonymous · 1⤊ 1⤋