Banca Selecon | Logical Mathematical Reasoning and Mathematics | Integers and their Operations

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In this video we will work with Mathematical Logical Reasoning and Mathematics questions from the Instituto Selecon Board for you who are going to take part in a competition organized by the Selecon Board or another board. In this class we will solve the questions of Logical Mathematical Reasoning and Mathematics from the SELECON Board involving the subject of Integers and their Operations.
Logical and Mathematical Reasoning
Propositions, connectives, logical equivalences, quantifiers and predicates. Sets and their operations, diagrams.
Integers, rational and real numbers and their operations, percentage. Direct and inverse proportionality. Measurements of
length, area, volume, mass and time. Logical structure of arbitrary relations between people, places, objects or
fictional events; deduction of new information from the relations provided and evaluation of the conditions used to
establish the structure of those relations. Understanding and analyzing the logic of a situation, using intellectual functions: verbal reasoning, mathematical reasoning, sequential reasoning, pattern recognition, spatial and temporal orientation, concept formation, discrimination of elements. Understanding data presented in graphs and tables. Logic and reasoning problems. Counting problems and notions of probability. Basic geometry: angles, triangles, polygons, distances, proportionality, perimeter and area. Notions of statistics: mean, mode, median and standard deviation. Questions answered during the video: 1-SELECON - Alto Araguaia City Hall/2024 The following table shows the number of people that João served in a public office on the following days of the same week. Days Monday Tuesday Wednesday
Number of people
served 1 hundred 8 tens 9 dozens
On these days, the total number of people served by João corresponds to:
a) 288
b) 298
c) 308
d) 318
Answer: A
2-SELECON - Pref Alto Araguaia/2024
Renan divided the amount of 600 reais into equal parts among his five children. Rafael, who is one of Renan's sons, divided the amount received into equal parts among his own three children. Thus, each of Rafael's children received, in reais, the following amount:
a) 20
b) 30
c) 40
d) 50
Answer: C
3-SELECON - Pref Água Boa/Mathematics/2024
A Math teacher wrote the number 39 on the board and then multiplied the digits of that number, obtaining 27 as the result. Then, he multiplied the digits of the number 27, obtaining 14, and finally he multiplied 1 by 4, obtaining 4. See these operations indicated below. Starting number: 39
• Step 1: 3 x 9 = 27
• Step 2: 2 x 7 = 14
• Step 3: 1 x 4 = 4
Then, we say that the number 39 has multiplicative persistence 3, since it was necessary to perform 3 steps to obtain a number with 1 digit, in this case, the digit 4.
Under these conditions, the multiplicative persistence of the number 976 is equal to:
a) 3
b) 4
c) 5
d) 6
Answer: C
4-SELECON - Pref Barra do Bugres/2023
A couple, planning their honeymoon, bought a travel package. The agent informed three forms of payment for this package: the first would be the full payment in cash of R$3,500.00; the second, in 6 fixed installments of R$650.00; and the third in 10 installments (the first 6 in the amount of R$500.00 and the last 4 in the amount of R$375.00). Considering that, in both installments there would be an increase in relation to the cash value, the value of the increases of the two forms of installments together would be equivalent to:
a) R$400.00
b) R$600.00
c) R$1,400.00
d) R$1,500.00
Answer: C
5-SELECON - Pref L do Rio Verde/Combating Endemic Diseases/2022
One day, 15 community agents were responsible for visiting a total of 300 homes. Each of them was supposed to visit the same number of homes. Due to an unforeseen event, three of these agents were unable to participate. To maintain the number of visits that each person should make initially, the number of homes that will no longer be visited on this day is a value between:
a) 0 and 25
b) 25 and 50
c) 50 and 100
d) 100 and 125
Answer: C
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