Problem

Consider the following project which for simplicity is assumed to have $10$ activities with the following data:

$\backslash$table$[[\backslash$table$[[$Work$],[$package$]],$A$,$B$,$C$,$D$,$E$,$F$,$G$,$H$,$J$,$K$],[\backslash$table$[[$Completion$],[$time$]],$t$1,$t$2,$t$3,$t$4,$t$5,$t$6,$t$7,$t$8,$t$9,$t$10],[\backslash$table$[[$Budgeted cost$],[$BC$]],50,50,100,150,150,150,150,120,60,50]]$

At the end of time t$6$ it is reported that the situation is as follows:

$\backslash$table$[[$Work package,A$,$B$,$C$,$D$,$E$,$F$],[\backslash$table$[[$Percent$],[$complete$]],100,100,100,100,60,40],[\backslash$table$[[$Actual cost AC$]],60,80,120,160,100,100]]$

Find the schedule variance and cost variance, comment on the project cost and running?