Question 941034
let x be the no of plums that sarah had initially
she gave 1/3 of her plums to peter
 Hence peter received  1/3 of x plums
         ={{{ x/3}}}
peter ate 1/2 of plums
peter ate  = {{{(1/2)*(x/3)}}}
              ={{{x/6}}} no of plums
remaining plums  =  {{{(x/3) -(x/6)}}}
             = {{{ x/6}}}
  jessica received x/6 no of plums 
  Jessica kept 5
of the plums and gave last 3 to Marc. 

hence {{{ (x/6)-5= 3}}}
         {{{ x/6 = 3+5}}}
         {{{x/6= 8}}}
             {{{x=6*8}}}
         x= 48
no of plums ate by pete  = x/6
              = 48/6
             = 8
Result: 8