#DILR-15

Six cities, A through F, are connected by certain two-way roads, such that any of the six cities can be reached from any of the other cities, using these roads, either directly or after passing through some of the other cities. The following table provides partial information about the minimum number of cities that one must pass through when travelling between any pair of cities:


Q1.   DIRECTIONS for question 1: Select the correct alternative from the given choices.
Which of the following pairs of cities are directly connected?
  1. E and C
  2. D and F
  3. B and E
 a) Only (i) and (ii)    
 b) Only (ii)    
 c) Only (iii)    
 d) Only (ii) and (iii)    

Q2.   DIRECTIONS for questions 2 and 3: Type your answer in the text box provided below the question.
In how many ways can a person travel from C to D without passing through any city twice?

Q3.   DIRECTIONS for questions 2 and 3: Type your answer in the text box provided below the question.
In how many ways can a person travel from A to C without passing through any city twice?


Q4.   DIRECTIONS for question 4: Select the correct alternative from the given choices.
If two of the cities, say X and Y, which are presently not directly connected were to be connected by a new two-way road, as a result of which any city can be reached from any other city by passing through at most one city in between, which of the following pairs of cities could X and Y be?

 a) A and B    
 b) B and C    
 c) C and E    
 d) None of the above    


Solutions:-


Comments

Post a Comment

Popular posts from this blog

#Profit&Loss-1

A shopkeeper uses false weights thereby cheats customer by giving 750 gm instead of 1 kg. He also claims that he sells rice at the cost price. In order to increase his sales he offered 125 gm of rice free with every 1 kg of rice. What is his overall percentage(approximate) profit if a customer buys 1 kg of rice and if the shopkeeper uses false weight to measure 125 gm also? Solution- Let the cost price of 1 gm of rice = Re 1 Cost Price of 750 gm = Rs. 750 Selling Price = Rs. 1000 We know that, SP = CP*(1 + Profit%) He is offering 125 gm for free but actually he is just giving 125*3/4 gms for free => SP = 1000*1 + 125*(3/4)*0 =>CP = 750 + 125*(3/4) => 1000 = (750 + 125*0.75)*(1 + Profit%) => Profit% = 18.51% Ans
Read more

# DILR-1

The currency of the country Banama is Rupas (Rp). There are exactly five denominations in which the currency is available – Rp 2, Rp 3, Rp 7, Rp 17 and Rp 19. Each of five persons, A through E, had notes of exactly one denomination with him and no two persons among the five had notes of the same denomination. On a particular day, the five persons visited a shop and each of them purchased a different product. The amounts that A through E paid the shopkeeper were Rp 102, Rp 357, Rp 399, Rp 238 and Rp 147, in that order. Further, the number of notes that each person gave the shopkeeper was distinct. However, the amount that each person paid the shopkeeper was more than the price of the product that he purchased. Therefore, the shopkeeper returned the excess amounts to each of A through E in the form of 2 notes, 4 notes, 1 note, 2 notes and 1 note respectively, but in denomination(s) different from that in which the person had paid the shopkeeper. Q1)What is the total numb
Read more

#DILR-18

Image
A building, which has 200 floors, has exactly three elevators - Elevator A, Elevator B and Elevator C. Only Elevator A stops at the ground floor (i.e., floor 0). Elevator A stops additionally at floors 5, 10, 15 and so on; Elevator B stops only at floors 4, 8, 12 and so on; Elevator C stops only at floors 6, 12, 18, 24 and so on. Further, all the floors are connected by a staircase and any floor can be reached from any other floor using this staircase. Tarun, a network engineer who visits various offices in this building everyday, always tries to reach the desired floor by taking the elevators so that he minimizes the number of floors that he has to walk using the staircase. Q1.     D I R E C T I O N S   f o r   q u e s t i o n s   1   a n d   2 :  Select the correct alternative from the given choices. Tarun got into Elevator A at the ground floor. He got down from Elevator A at the p t h  floor. He got into Elevator B at this floor and got down at the q t h  floor suc
Read more