Question 1002015
.
It is typical problem on joint work.
For similar problem see the lesson &nbsp;<A HREF=http://www.algebra.com/algebra/homework/Rate-of-work-word-problems/Word-problems-WORKING-TOGETHER-by-Fractions.lesson>Using fractions to solve word problems on joint work</A>&nbsp; in this site &nbsp;(<U>Problem 1</U>).


Read it attentively and then substitute your data. 


Good luck!


{{{1/42}}} + {{{1/30}}} = {{{(5 + 7)/(5*6*7)}}} = {{{12/(5*6*7)}}} = {{{2/35}}}. &nbsp;&nbsp;&nbsp;&nbsp;----->


<U>Answer</U>. &nbsp;It requires &nbsp;{{{35/2}}} = {{{17}}}{{{1/2}}} &nbsp;minute for two taps to fill the tank.