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03 Jul 2017, 05:02
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P is a set of integers. If a is the average of the odd integers and b is the average of the even integers in set P, what is the value of |a − b|?
(1) P consists of consecutive integers starting from 1.
(2) There are not more than 50 integers in the set P.
(1) P consists of consecutive integers starting from 1.
(2) There are not more than 50 integers in the set P.
03 Jul 2017, 06:23
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Given data : (In set P)
a is the average of the odd integers
b is the average of the even integers
(1) P consists of consecutive integers starting from 1
Though we are given that the set contains consecutive integers, starting from 1.
We aren't told if the last of the integers is even or odd.
The value |a-b| will change based on the last integer.(Insufficient)
(2) There are not more than 50 integers in the set P
Knowing how many integers are there in the set,
we cannot determine the value of |a-b| (Insufficient)
On combining the information present in both the statements,
we cannot determine what the last number will be, which is mandatory
in order to find the value of expression |a-b| (Insufficient)(Option E)
a is the average of the odd integers
b is the average of the even integers
(1) P consists of consecutive integers starting from 1
Though we are given that the set contains consecutive integers, starting from 1.
We aren't told if the last of the integers is even or odd.
The value |a-b| will change based on the last integer.(Insufficient)
(2) There are not more than 50 integers in the set P
Knowing how many integers are there in the set,
we cannot determine the value of |a-b| (Insufficient)
On combining the information present in both the statements,
we cannot determine what the last number will be, which is mandatory
in order to find the value of expression |a-b| (Insufficient)(Option E)
04 Jul 2017, 10:31
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pushpitkc
Given data : (In set P)
a is the average of the odd integers
b is the average of the even integers
(1) P consists of consecutive integers starting from 1
Though we are given that the set contains consecutive integers, starting from 1.
We aren't told if the last of the integers is even or odd.
The value |a-b| will change based on the last integer.(Insufficient)
(2) There are not more than 50 integers in the set P
Knowing how many integers are there in the set,
we cannot determine the value of |a-b| (Insufficient)
On combining the information present in both the statements,
we cannot determine what the last number will be, which is mandatory
in order to find the value of expression |a-b| (Insufficient)(Option E)
a is the average of the odd integers
b is the average of the even integers
(1) P consists of consecutive integers starting from 1
Though we are given that the set contains consecutive integers, starting from 1.
We aren't told if the last of the integers is even or odd.
The value |a-b| will change based on the last integer.(Insufficient)
(2) There are not more than 50 integers in the set P
Knowing how many integers are there in the set,
we cannot determine the value of |a-b| (Insufficient)
On combining the information present in both the statements,
we cannot determine what the last number will be, which is mandatory
in order to find the value of expression |a-b| (Insufficient)(Option E)
Hi, I have a doubt. I agree that Statement 1 & 2 are not sufficient alone.
But if we combine, statement 1 says integers start from 1 and are consecutive. So set will be like 1,2,3,4,..... Statement 2 says integers are not more than 50, this means set should be 1,2,3,4,.....50. Here we know that set starts from 1 and ends at 50 and numbers are consecutive. Correct me if I am wrong with this reasoning.
Thanks
