Logical Reasoning Set-36 (Level-3)

SBI PO prelims reasoning tricks: SBI PO prelims reasoning tricks to help you enhance your performance in the exam

SBI PO prelims reasoning tricks are general and can be useful in reasoning sections of others exam as well. Before you proceed to understand the SBI PO prelims reasoning tricks make sure you have complete knowledge of all the aspects of the exam such as exam pattern, syllabus and marking scheme. Some of the essential SBI PO prelims reasoning tricks for the exam are:
• Use tables/diagrams to devise solutions while solving problems. This simplifies the process to reach to an answer and also helps you easily read and recollect your line of thought if you are stuck and decide to return to it later on.
• Connect pieces of information and parameters to arrive to inferences and conclusions.
• Use the Venn diagram approach to solve Syllogism questions.
• Make notes for formulas and shortcuts, chapter wise, that you can refer to before any mock test/ exam.

Directions for the question set:

Answer the questions on the basis of the information given below.
Twenty one participants from four continents (Asia, Latin America, Arab, and North America) attended a United Nations conference. Each participant was an expert in one of four fields, labour, health, population studies, and refugee relocation. The following five facts about the participants are given.
(a) The number of labour experts in the camp was exactly half the number of experts in each of the three other categories.
(b) Asia did not send any labour expert. Otherwise, every continent, including Asia, sent at least one expert for each category.
(c) None of the continents sent more than three experts in any category.
(d) If there had been one less Arabian expert, then Latin America would have had twice as many experts as each of the other continents.
(e) Michal and Alfanso are leading experts of population studies who attended the conference. They are from Arab.

Question 1: Alan, an American expert in refugee relocation, was the first keynote speaker in the conference. What can be inferred about the number of American experts in refugee relocation in the conference, excluding Alan ?
(i) At least one
(ii) At most two
(a) Only i and not ii
(b) Only ii and not i
(c) Both i and ii
(d) Neither i nor ii

Question 2: If Ramos is the alone Latin American expert in population studies, which of the following is NOT true about the number of experts in the conference from the continents?
(a) There are three experts in refugee relocation from Latin America.
(b) There is one expert in refugee relocation from Asia.
(c) There are two experts in health from Latin America.
(d) There is one expert in health from Asia.

Question 3: Which of the following combinations is NOT possible?
(a) 3 experts in refugee relocation from the Latin America and 1 health expert from Asia attended the conference
(b) 2 experts in population studies from the Latin America and 2 health experts from Asia attended the conference.
(c) 2 experts in population studies from the Latin America and 1 health expert from Asia attended the conference.
(d) Asia and America each had 1 expert in population studies attending the conference.

Question 4: Which of the following numbers cannot be determined from the information given ?
(a) Number of health experts from Arab
(b) Number of labour experts from the Latin America
(c) Number of health experts from North America
(d) Number of experts in refugee relocation from Asia

Answers and Explanations: Click the down arrow to expand

Answers 1: (c)

Common solution for the set: It is given that Alan is one of the American experts in refugee relocation. From the table, there can be 1 more or 2 more American experts in the same category.

It is given that the number of labour experts is half the number of experts in each of the other categories. Let the number of labour experts be x.

Number of labour experts = 3 and number of experts in each of the other categories = 6.

Given that if there had been one less Arabian experts, then the Latin Americans would have had twice as many experts as each of the other continents. Let the number of Americans be 2y.

2y + y + (y + l) + y = 21 ∴ y = 4.

So the number of Americans = 8

Number of Arabs = 4 + 1 = 5

Number of Asians = 4

Number of North Americans = 4 It is also given that except Asia in labour category, every continent sent at least one expert in each category.

The correct option is (c).

Answers 2: (c) For the common solution for this set, refer to solution of Question 1. If Latin America had 1 expert in population studies, the remaining Americans should be distributed in 2 remaining fields i.e., 3+3. Hence the number of health experts from Latin America cannot be 2. The correct option is (c).

Answers 3: (d) For the common solution for this set, refer to solution of Question 1.

From the given choices, the statements in the first three choices are possible from the given table.

The statement in choice (d) i.e., Asia and the Latin America had 1 expert each in population studies attending the conference is not possible as in this case the total number of experts in population studies is 5. i.e., 2 from Australia, 1 from Asia, 1 from North America and 1 from the Latin America.

∴ This is not possible. The correct option is (d).

Answers 4: (d) For the common solution for this set, refer to solution of Question 1.

Number of labour experts from the Latin America = 1

Number of health experts from North America = 1

Number of health experts from Australia = 1

Number of experts in refugee relocation from Asia = 2/1

The correct option is (d).

Extra tips for SBI PO prelims reasoning tricks exam:
• Prepare your own notes consisting of SBI PO prelims reasoning tricks that you can refer to in the exam.
• Use tree diagrams to solve problems based on blood relations.
• SBI PO prelims reasoning tricks come handy so that you can save time by avoiding lengthier methods and make sure to attempt every question in the exam.