DILR Preparation Tips for MBA

Directions for questions: Answer the questions on the basis of the information given below. Given below is a network of oil pipelines and nine hubs– A through I. The requirement of oil at the hubs is exactly met by the flow in the pipelines. The flow in some of the pipelines and the requirement at some of the hubs is also mentioned. A is the only hub which is a source hub, i.e. the hub A does not have any requirement of its own but it supplies the requirement of all the other hubs.

It is also known that

I. The maximum capacity of any pipeline is 1000.

II. The requirement at any hub except A and I is equal to the flow in exactly one of the pipelines directly connected to it.

III. No two pipelines directly connected to the same hub carry the same amount of oil.

IV. The flow in none of the pipelines shown above is zero.

What is the required at the junction I?

Directions for questions: Read the following passage and solve the questions based on it.

(i) Mr Sharma has five sons – A, K, S, R, and N. While going for a party, they wore different coloured shirts viz., red, yellow blue, white and green (not necessarily in the same order).

(ii) Each one of them has different likings viz., reading, playing traveling, singing and writing in no particular order.

(iii) K, who has a liking for singing, does not wear a yellow shirt. S wears red shit and does not like reading or writing. N likes to play and does not wear a blue or yellow shirt. A has a liking for writing and R does not wear a yellow or green shirt.

What is the colour of K's shirt?

The following charts show the responses of the population of the state of ABC over a four-year period to the question– “Is State ownership the best way to run an enterprise OR an enterprise is best run by private entrepreneurs?” The eligible voting population of ABC was 4.8 million in January 2003 and can be assumed to have grown by 20% each year during the period January 2002–January 2005. The entire eligible population voted in each of the four years and every person casted a vote in favour of only one of the five options shown each year.

For how many options during the give period did the number of people voting in favour of the options, decrease in each year, relative to the previous year.