Directions: Compare Quantity A and Quantity B, using additional infor...
Since there is no obvious relationship between the quantities n and 2
d − 1, it is a goodidea to try a few values of n to see what happens. Note that you are given that n is an integer greater than 3, so you can start comparing the quantities for the case n = 4 and proceed from there
Case 1: n = 4. The integer 4 has three positive divisors, 1, 2, and 4. So in this case, d = 3. Therefore 2d − 1 = 23 − 1 = 4, and the two quantities are equal.
Case 2: n = 5. The integer 5 has two positive divisors, 1 and 5. So in this case, d = 2. Therefore 2d − 1 = 22 − 1 = 2, and Quantity A is greater than Quantity B.
In one case the two quantities are equal, and in the other case Quantity A is greater
than Quantity B. Therefore the correct answer is Choice D.
Directions: Compare Quantity A and Quantity B, using additional infor...
Given:
- n is a positive integer greater than 3.
- n has d positive divisors.
To find:
Compare Quantity A (n) and Quantity B (2d-1).
Solution:
To compare the two quantities, let's analyze the information given.
Positive divisors:
The positive divisors of a number are the numbers that divide it evenly without leaving a remainder. For example, the positive divisors of 6 are 1, 2, 3, and 6.
Number of positive divisors:
To find the number of positive divisors of a given number, we count the total number of divisors it has. For example, the number 6 has 4 positive divisors (1, 2, 3, 6).
Quantity A - n:
Quantity A is simply the value of n, which is a positive integer greater than 3.
Quantity B - 2d-1:
Quantity B is given by the expression 2d-1. Here, d represents the number of positive divisors of n.
Analysis:
Now, let's analyze the relationship between Quantity A and Quantity B.
- Since n is a positive integer greater than 3, we know that Quantity A is a positive integer.
- The expression 2d-1 represents a positive integer subtracted by 1. Since d represents the number of positive divisors of n, and n is greater than 3, we can conclude that d is also a positive integer.
- However, without any additional information about the specific value of n or the number of positive divisors it has, we cannot determine the relationship between Quantity A and Quantity B.
Conclusion:
Based on the information given, the relationship between Quantity A and Quantity B cannot be determined. Therefore, the correct answer is option D - The relationship cannot be determined from the information given.
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