What is the difference of ages of C and B?

FirstCalculateageasshowninfigureimgsrchttpswwwixambeecomquestionimageQuestionBank1671620861AGE5JPGaltNumberofpersonbelowtheFisonethirdthenumberofpersonbelowtheonewhoseageis25yearsTheonewhoseageis25yearsdonotliveinoddnumberedfloorOnlytwopersonlivesbetweentheonewhoseageis25yearsandBwhoseageisnot27yearsAtleastonepersonlivesbetweenBandtheonewhoseageis27yearsSumofagesoftheonewholivesonfloor2andBis53yearsBlivesonanyfloorbelowtheonewhowasbornin1993AgeofBisgreaterthanGBriefhints2possibilitiestomake5331222726Incase12726combinationisnotpossibleforBand2ndfloorNoteIfBsageis22andthenGsagemustbelessthan22yearswhichisnotpossibleasperagecalculationtableHenceBsagemustbe31yearsandFsagemustbe22yearsimgsrchttpswwwixambeecomquestionimageQuestionBank1671620861AGE5aJPGaltTwopersonlivesbetweenEandtheonewhowasbornin1993EwhoseageisnotoddnumberlivesjustabovetheonewhoseageismultipleoffiveAtleastonepersonlivesbetweenBandtheonewhoseageis27yearsNumberofpersonbelowEistwomorethannumberofpersonaboveAimgsrchttpswwwixambeecomquestionimageQuestionBank1671620861AGE5bJPGaltimgsrchttpswwwixambeecomquestionimageQuestionBank1671620861AGE5cJPGaltAgeofDisneitheroddnumbernorhelivesbelowAMorethantwofloorbetweenCandDHdoesnotliveevennumberedfloorwasneitherbornin1985norishisageisanevennumberimgsrchttpswwwixambeecomquestionimageQuestionBank1671620861AGE5dJPGaltimgsrchttpswwwixambeecomquestionimageQuestionBank1671620861AGE5eJPGalt

Question

Answer the questions based on the information given below: Eight persons namely A, B, C, D, E, F, G and H lives in eight different floored building. Floors of building are marked 1 to 8 in such a way that floors are marked from bottom to top. Each person was born in different year viz. 1985, 1993, 1978, 1995, 1997, 1994, 1998 and 1989. All the information is not necessary in same order. Age of the person is calculated from current year 2020. B lives on any floor below the one who was born in 1993. Number of person below the F is one third the number of person below the one whose age is 25 years. At least one person lives between B and the one whose age is 27 years. Only two person lives between the one whose age is 25 years and B, whose age is not 27 years. Sum of ages of the one who lives on floor 2 and B is 53 years. Two person lives between E and the one who was born in 1993. Average sum of ages of the one who lives on lowermost floor and G is one more than the age of D. E, whose age is not odd number, lives just above the one whose age is multiple of five. H does not live even numbered floor, was neither born in 1985 nor is his age is an even number. Age of D is neither odd number nor he lives below A. Number of person below E is two more than number of person above A. Age of B is greater than G. More than two floor between C and D. The one whose age is 25 years do not live in odd numbered floor.