PLEASE SOLVE THESE QUESTIONS WITH STEPS
 
 

Asked by Latha | 3rd Nov, 2017, 07:54: PM

Expert Answer:

begin mathsize 16px style According space to space the space given space question comma
straight A space and space straight B space can space do space the space work space in space 8 space days space rightwards double arrow fraction numerator begin display style 1 end style over denominator begin display style straight A end style end fraction plus fraction numerator begin display style 1 end style over denominator begin display style straight B end style end fraction equals fraction numerator begin display style 1 end style over denominator begin display style 8 end style end fraction space
straight A space alone space can space do space the space work space in space 12 space days space rightwards double arrow space 1 over straight A equals 1 over 12
rightwards double arrow fraction numerator begin display style 1 end style over denominator begin display style 12 end style end fraction plus 1 over straight B equals fraction numerator begin display style 1 end style over denominator begin display style 8 end style end fraction
rightwards double arrow fraction numerator begin display style 1 end style over denominator begin display style straight B end style end fraction equals fraction numerator begin display style 1 end style over denominator begin display style 8 end style end fraction minus fraction numerator begin display style 1 end style over denominator begin display style 12 end style end fraction
rightwards double arrow fraction numerator begin display style 1 end style over denominator begin display style straight B end style end fraction equals fraction numerator 12 minus 8 over denominator 96 end fraction
rightwards double arrow fraction numerator begin display style 1 end style over denominator begin display style straight B end style end fraction equals 4 over 96
rightwards double arrow fraction numerator begin display style 1 end style over denominator begin display style straight B end style end fraction equals 1 over 24
straight B space alone space can space do space the space work space in space 24 space days. end style

Answered by Sneha shidid | 5th Nov, 2017, 05:09: PM