Thread: Tricky one

I'Am not sure if this can be answered. This is a real life question -

Q) There are -
1000 users in Group1
200 users in Group2
300 users in Group3

Total 100 users are member of Both Group1 and Group2.
Total 120 users are member of Both Group1 and Group3.

Can it be concluded somehow how many users are both in Group2 and Group3??

i dont think so, but i wanted to confirm from you experts.
i know in Maximum worst case, we can have all 200 users of Group2 in both Group2 and Group3. But can an exact figure be calculated somehow??

thanks.
regards

Originally Posted by aiwaxxx

I'Am not sure if this can be answered. This is a real life question -

Q) There are -
1000 users in Group1
200 users in Group2
300 users in Group3

Total 100 users are member of Both Group1 and Group2.
Total 120 users are member of Both Group1 and Group3.

Can it be concluded somehow how many users are both in Group2 and Group3??

i dont think so, but i wanted to confirm from you experts.
i know in Maximum worst case, we can have all 200 users of Group2 in both Group2 and Group3. But can an exact figure be calculated somehow??

thanks.
regards

I think you would need to know also how many users were in Groups 1, 2, and 3.

Originally Posted by aiwaxxx

I'Am not sure if this can be answered. This is a real life question -

Q) There are -
1000 users in Group1
200 users in Group2
300 users in Group3

Total 100 users are member of Both Group1 and Group2.
Total 120 users are member of Both Group1 and Group3.

Can it be concluded somehow how many users are both in Group2 and Group3??

i dont think so, but i wanted to confirm from you experts.
i know in Maximum worst case, we can have all 200 users of Group2 in both Group2 and Group3. But can an exact figure be calculated somehow??

thanks.
regards

I think it depends on the relationship between the groups.

If there is no relation, then 200 is the answer.

Originally Posted by aiwaxxx

I'Am not sure if this can be answered. This is a real life question -

Q) There are -
1000 users in Group1
200 users in Group2
300 users in Group3

Total 100 users are member of Both Group1 and Group2.
Total 120 users are member of Both Group1 and Group3.

Can it be concluded somehow how many users are both in Group2 and Group3??

i dont think so, but i wanted to confirm from you experts.
i know in Maximum worst case, we can have all 200 users of Group2 in both Group2 and Group3. But can an exact figure be calculated somehow??

thanks.
regards

I think you could also work it out if you knew the total number of users and the amount of users that are in all 3 groups.

Originally Posted by aiwaxxx

I'Am not sure if this can be answered. This is a real life question -

Q) There are -
1000 users in Group1
200 users in Group2
300 users in Group3

Total 100 users are member of Both Group1 and Group2.
Total 120 users are member of Both Group1 and Group3.

Can it be concluded somehow how many users are both in Group2 and Group3??

i dont think so, but i wanted to confirm from you experts.
i know in Maximum worst case, we can have all 200 users of Group2 in both Group2 and Group3. But can an exact figure be calculated somehow??

thanks.
regards

could you like at this in this way? but it's most likely to be wrong:

1000x+200y+0z=100
1000x+0y+300z=120

(200y+0z-100)/1000=x
1000((200y+0z-100)/1000)+0y+300z=120
200y-100+300z=120
200y+300z=220

but this is only based on the previous groups and it exceeds 200.