Critical Path
Logical Reasoning

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Common Information

Two days (Thursday and Friday) are left for campaigning before a major election, and the city administration has received requests from five political parties for taking out their processions along the following routes.

Table below can be scrolled horizontally

Congress: A-C-D-E
BJP: A-B-D-E
SP: A-B-C-E
BSP: B-C-E
CPM: A-C-D

Street B-D cannot be used for a political procession on Thursday due to a religious procession. The district administration has a policy of not allowing more than one procession to pass along the same street on the same day. However, the administration must allow all parties to take out their procession during these two days.

Common information image for Critical Path, Logical Reasoning:2287-1

Q.

Common Information Question: 1/2

Congress procession can be allowed:

 A.

Only on Thursday

 B.

Only on Friday

 C.

On either day

 D.

Only if the religious procession is cancelled

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Solution:
Option(A) is correct

$\because$ Route BD cannot be used on Thursday.

∴ BJP has to take out its procession on Friday.

$\because$ Route DE is common to BJP and Congress.

∴ Congress should take out its procession on Thursday.

$\because$ Route AB is common to SP and BJP.

∴ SP should take out its procession on Thursday.

∴ BSP and CPM have to take out their processions on Friday.

∴ Congress procession can be allowed only on Thursday.

Hence, option A is the correct choice.

Table below can be scrolled horizontally

Thursday Friday
Congress BJP
SP BSP
  CPM

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