Reasoning Aptitude
ANALYTICAL REASONING MCQs
-NA-
If 'K' is included 'L' has to be included (statement three).If 'L' is chosen neither N nor U can be chosen (statement five and six).S, W are also not included because S, U, W have to be always together (statement four).Hence, one of P or R would be selected (statement one) and one of M or Q would be selected (statement two).
If a team includes N, it cannot include 'L'.And therefore not even 'K' (statement five and three)According to the statement one,One of P or R or S has to be included.According to the statement two,One of M or Q has to be selected.So, the following cases are possible:P Q N,R Q N,P M N,R M N,If 'S' is selected,S U W M NS U W Q Nare the only possible cases.Hence, in all 4 + 2 = 6 ways can be constituted.
Only A, C, E changed their Erdos number, rest 5 did not change their Erdos number.
At the end of conference, 6 people including E were having an Erdos number of 2 and F was having 1 as Erdos number. So, 8th person was having an Erdos number of [20 - (2 * 6 + 1)] = 7
As at the end of 3rd round, 5 people were having same Erdos number. A and C changed their Erdos number after co-authoring with F. So, the other 3 would have same Erdos number in the beginning.
2
Bobby
-NA-
Mathew