Answer :
I will change hour to be minute
2 hours =120minute
spent 3/5 of 120 minutes ;120(3/5)=24*3=72
he did his experiments for 72 minutes
72 of 120 is 72/120 =3/5
spent 1/3 of 120 minutes ; 120(1/3)=40
he spent the time at water station for 40 minutes
40 of 120 is 40/120 = 1/3
Looked at the skeletons 120-(72+40)=120-112=8
he spent the time lokking at skeletons for 8 minutes
8 of 120 is 8/120 = 1/15
2 hours =120minute
spent 3/5 of 120 minutes ;120(3/5)=24*3=72
he did his experiments for 72 minutes
72 of 120 is 72/120 =3/5
spent 1/3 of 120 minutes ; 120(1/3)=40
he spent the time at water station for 40 minutes
40 of 120 is 40/120 = 1/3
Looked at the skeletons 120-(72+40)=120-112=8
he spent the time lokking at skeletons for 8 minutes
8 of 120 is 8/120 = 1/15