Question Bank - General Aptitude

Here's the question bank on all the general aptitude topics.

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There are multiple routes to reach from node 1 to node 2, as shown in the network.The cost of travel on an edge between two nodes is given in rupees. Nodes a, b, c, d, e, and f are toll booths. The toll price at toll booths marked a and e is Rs. 200, and is Rs. 100 for the other toll booths. Which is the cheapest route from node 1 to node 2?

A.
1-a-c-2
B.
1-f-b-2
C.
1-b-2
D.
1-f-e

Solution:

Option 1: 1-a-c-2Route1 ? aa ? cc ? 2Cost200100100Total cost = 200 + 100 + 100 = 400Option 2: 1-f-b-2Route1 ? ff ? bb ? 2Cost1000200Total cost = 100 + 0 + 200 = 300Option 3: 1-b-2Route1 ? bb ? 2Cost300200Total cost = 300 + 200 = 500Option 4: 1-f-e-2Route1 ? ff ? ee ? 2Cost100100200Total cost = 100 + 100 + 200 = 400Therefore, the cheapest route from node 1 to node 2 is 1-f-b-2.

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