### Discussion :: Combinational Logic Circuits - General Questions (Q.No.26)

Xyz said: (May 3, 2011) | |

Please someone explain this logic. |

Selva said: (Dec 3, 2011) | |

I can't understand the logic in a given options. Please any one explain me the logic. |

Adarsha.Barkua said: (Feb 18, 2012) | |

A=1100 AND B=1001 SO both having equal number of one's and zero's but the value is differs. A is greater compare to B but it's having equal no of one's (A>B=1) same holes good for next statement but considering zero's A value is smaller compare to B but its having equal number of zero's (A<B=0) and finally both are equal (A=B=0) zero indicate hr (A-B) but in the form of number of ones and zero's present both are equal so zero. |

Sudeep said: (May 21, 2012) | |

As far I am thinking its a comparator which compares two numbers. A is 1100 (12) , B is 1001 (9). A>B (TRUE so 1) , A<B (FALSE so 0) , A=B (FALSE so 0). Well I am not sure whether I am following the correct logic. |

Chandan said: (Aug 31, 2012) | |

Yes, sudeep give correct explanation. |

Sanjiya said: (Apr 1, 2013) | |

A = 1100,(12). B = 1001,(9). 1 is represent true. 0 is represent false. So, A>B=1, A<B=0, A=B=0; True, False, False. |

Judepraveen said: (Dec 16, 2014) | |

What is the correct answer? |

Manowar said: (Aug 7, 2016) | |

You are right @Sudeep. |

Divya Chaudhary said: (Nov 4, 2016) | |

The logic behind the ansswer is: There can be three cases : number A is greater than number B,or less than B or equal to B. i.e. case1:A<B case2:A>B case3:A=B Now,in question A=1100 whose decimal equivalent is 12 and B=1001 whose binary equivalent is 9. So case1 is true, and we are using 1 for true and 0 for false.so combining three cases to giveanswer we get, A > B = 1,A < B = 0, A = B = 0. |

Vanitha said: (May 27, 2017) | |

Thanks for your explanation @Sanjiya. |

Sachin said: (Aug 17, 2017) | |

You give a simple explanation easy to understand. Thanks @Sudeep. |

Shaik said: (Sep 21, 2017) | |

You are right, thanks for the explanation @Sudeep. |

Manogna said: (Feb 20, 2018) | |

I am not getting the solution. Anyone help me to get it. |

Vishaka said: (Feb 21, 2018) | |

It's a bitwise comparison so A=B=1 , A>B=1,A<B=0. according to my knowledge, A=1101 B=1001. 1st-row A=B, 2nd-row A>B, 3rd-row A=B, 4th-row A=B. E is equal, G is greater. |

Kanmani said: (May 2, 2019) | |

Thanks @Sudeep. |

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