Question 1127014
.
<pre>
Working for x days, Adil made  {{{x/9}}}  parts of the entire job.


Working 10 days,  Babar made  {{{10/15}}}  parts of the entire job.


It gives you an equation to find x:


    {{{x/9}}} + {{{10/15}}} = 1.


From the equation,


    {{{x/9}}} = 1 - {{{10/15}}} = 1 - {{{2/3}}} = {{{1/3}}},


hence


    x = {{{9*(1/3)}}} = 3 days       <U>Answer</U>
</pre>