(b) All the possible combinations are :– Option (a):T1+T2=3+5=8 days Option (b):T1+T2+T5=3+5+2=10 days Option (c):T1+T4+T5=3+4+2=9 days Option (d):T1+T2+T4=3+5+4=12 days
Option (e):T1+T3+T4=3+3+4=10days
Since, Arun’s 1st priority is to complete as many tasks as possible, option (a) is ruled out since only 2 tasks are performed. Option (d) is also eliminated since the number of days required are > 10, which is not permitted. Since, ‘higher priority tasks’ is his 2nd priority after the number of tasks. ∴ Arun should try to complete those tasks i.e. T1,T2andT5