Tokens

In the non-transparent bags are red, white, yellow, blue tokens. We 3times pull one tokens and again returned it, write down all possibilities.

Correct result:

n =  64

Solution:

AAA AAA AAA AAA AAB AAB AAB AAB AAC AAC AAC AAC AAD AAD AAD AAD ABA ABA ABA ABA ABB ABB ABB ABB ABC ABC ABC ABC ABD ABD ABD ABD ACA ACA ACA ACA ACB ACB ACB ACB ACC ACC ACC ACC ACD ACD ACD ACD ADA ADA ADA ADA ADB ADB ADB ADB ADC ADC ADC ADC ADD ADD ADD ADD BAA BAA BAA BAA BAB BAB BAB BAB BAC BAC BAC BAC BAD BAD BAD BAD BBA BBA BBA BBA BBB BBB BBB BBB BBC BBC BBC BBC BBD BBD BBD BBD BCA BCA BCA BCA BCB BCB BCB BCB BCC BCC BCC BCC BCD BCD BCD BCD BDA BDA BDA BDA BDB BDB BDB BDB BDC BDC BDC BDC BDD BDD BDD BDD CAA CAA CAA CAA CAB CAB CAB CAB CAC CAC CAC CAC CAD CAD CAD CAD CBA CBA CBA CBA CBB CBB CBB CBB CBC CBC CBC CBC CBD CBD CBD CBD CCA CCA CCA CCA CCB CCB CCB CCB CCC CCC CCC CCC CCD CCD CCD CCD CDA CDA CDA CDA CDB CDB CDB CDB CDC CDC CDC CDC CDD CDD CDD CDD DAA DAA DAA DAA DAB DAB DAB DAB DAC DAC DAC DAC DAD DAD DAD DAD DBA DBA DBA DBA DBB DBB DBB DBB DBC DBC DBC DBC DBD DBD DBD DBD DCA DCA DCA DCA DCB DCB DCB DCB DCC DCC DCC DCC DCD DCD DCD DCD DDA DDA DDA DDA DDB DDB DDB DDB DDC DDC DDC DDC DDD DDD DDD DDD n=43=64



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