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PASSAGE :-

Out of 10 childrens in a family a trip to fun republic is organized such that at a time only three childrens are included and the same group should not visit twice. Then answer the following questions:-

(i) The maximum number of trips in which a particular child C 1 is present but C 10 is excluded ?

(ii) The maximum number of trips that can be made to the comndition that C2 and C9 have decided to go together ?

(iii) Maximum number of trpis that can be made if C1 refuses to be in the group if C2 is present

Sanchit Gupta , 14 Years ago
Grade 12
anser 1 Answers
Jitender Singh

Last Activity: 10 Years ago

Ans:
Hello Student,
Please find answer to your question below

(i) The maximum number of trips pertaining to the condition in the question
(C1,C2,C3
),(C1,C2,C4).................................=7
(C1,C3,C4),(C1,C3
,C5)...........................................= 6

So in this we have total trips
7 + 6 + 5 + 4 + 3 + 2 + 1 = 28

(ii)
This is simple. Two children always present in the gropup. So the rest go with them one by one.
Total no. of trips = 8

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