Question

Suppox that We inputs toe , 29, 30, ч):.tornpute auaag e も10 CAK ヒ

Answer 1

Initial value of variable i must 1(not 0).
Consider all cases of triples (x1,x2,x3) :-
1.) (10,20,30) : (t=0) < 50(true)
t=t+x1=0+10=10 (1 add)
i=i+1=1+1=2 (1 add)
(t=10) < 50(true)
t=t+x2=10+20=30 (1 add)
i=i+1=2+1=3 (1 add)
(t=30) < 50(true)
t=t+x3=30+30=60 (1 add)
i=i+1=3+1=4 (1 add)
(t=60) < 50 (false)
Total no. of additions in this case = 6

2.) (10,20,40) : (t=0) < 50(true)
t=t+x1=0+10=10 (1 add)
i=i+1=1+1=2 (1 add)
(t=10) < 50(true)
t=t+x2=10+20=30 (1 add)
i=i+1=2+1=3 (1 add)
(t=30) < 50(true)
t=t+x3=30+40=70 (1 add)
i=i+1=3+1=4 (1 add)
(t=70) < 50 (false)
Total no. of additions in this case = 6

3.) (10,30,40) : (t=0) < 50(true)
t=t+x1=0+10=10 (1 add)
i=i+1=1+1=2 (1 add)
(t=10) < 50(true)
t=t+x2=10+30=40 (1 add)
i=i+1=2+1=3 (1 add)
(t=40) < 50(true)
t=t+x3=30+40=70 (1 add)
i=i+1=3+1=4 (1 add)
(t=70) < 50 (false)
Total no. of additions in this case = 6

4.) (20,30,40) : (t=0) < 50(true)
t=t+x1=0+20=20 (1 add)
i=i+1=1+1=2 (1 add)
(t=20) < 50(true)
t=t+x2=20+30=50 (1 add)
i=i+1=2+1=3 (1 add)
(t=50) < 50(false)
Total no. of additions in this case = 4

Total no. of additions in all cases = 6 + 6 + 6 + 4 = 22
Total no. of cases = 4
Average no. of additions = Total no. of additions/Total no. of cases = 22/4 = 5.5

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