Susan is processing the admission application for students to Jubail Industrial College. Tasks and time taken to process each application is given in the table below. What is the standard time if the personal allowance is $5\%,$ and delay allowance is $10\%?[6$ marks$]$

$\backslash$table$[[$Tasks$,$Observations $($Seconds$),\backslash$table$[[$Performance$],[$rating $(\%)]]],[1,2,3,4,5],[1,15,13,{25}^{**},14,13,115],[2,5,7,6,7,5,115],[3,25,22,26,26,{44}^{**},85],[4,10,{18}^{**},12,11,10,120]]$

The observations that are unusual $(**)$ must be removed. $(6$ marks$)$