Dit kreeg ik binnen via de mail. En inderdaad, het werkt. Maar hoe werkt dit precies?
1) key-in the first 3 digits of your (7-digit) phone number (exclude the area code) into the calculator
2) multiply by 80
3) add 1
4) multiply by 250
5) plus last four digits of phone number
6) plus last four digits of phone number again
7) minus 250
8) divide by 2 at last
Is it your phone number????
nescio
22-11-2004
Gegeven het nummer: abc defg (a..g zijn cijfers)
1. 100a+10b+c
2. 8000a+800b+80c
3. 8000a+800b+80c+1
4. 2000000a+200000b+20000c+250
5. 2000000a+200000b+20000c+250+1000d+100e+10f+g
6. 2000000a+200000b+20000c+250+2000d+200e+20f+2g
7. 2000000a+200000b+20000c+2000d+200e+20f+2g
8. 1000000a+100000b+10000c+1000d+100e+10f+g
Flauw!
WvR
22-11-2004
#30321 - Puzzels - Iets anders