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What is the average (arithmetic mean) annual salary of the 6 employees

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What is the average (arithmetic mean) annual salary of the 6 employees  [#permalink]

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New post 03 Aug 2018, 11:13
1
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A
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C
D
E

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Question Stats:

52% (01:01) correct 48% (01:03) wrong based on 133 sessions

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What is the average (arithmetic mean) annual salary of the 6 employees of a toy company?

(1) If the 6 annual salaries were ordered from least to greatest, each annual salary would be $6,300 greater than the preceding annual salary.
(2) The range of the 6 annual salaries is $31,500.


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What is the average (arithmetic mean) annual salary of the 6 employees  [#permalink]

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New post Updated on: 03 Aug 2018, 11:30
1. We don't know individual values. So insufficient.

2. We know only the ranges. Value can be anything. So insufficient

1+2 salaries are 0,6300,12600,18900,25200,31500

6300,12600,18900,25200,31500,37800

So any values possible. So insufficient

Hence E

Originally posted by ashisplb on 03 Aug 2018, 11:20.
Last edited by ashisplb on 03 Aug 2018, 11:30, edited 1 time in total.
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What is the average (arithmetic mean) annual salary of the 6 employees  [#permalink]

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New post Updated on: 03 Aug 2018, 11:59
1
ashisplb wrote:
1. We don't know individual values. So insufficient.

2. We know only the ranges. Value can be anything. So insufficient

1+2 salaries are 0,6300,12600,18900,25200,31500

Hence C

Posted from my mobile device

ashisplb why would anyone do a job for zero salary ?
In fact it could be any value for the least paid and the increment of 6300 then on
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Originally posted by sudarshan22 on 03 Aug 2018, 11:24.
Last edited by sudarshan22 on 03 Aug 2018, 11:59, edited 1 time in total.
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Re: What is the average (arithmetic mean) annual salary of the 6 employees  [#permalink]

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New post 03 Aug 2018, 11:34
1
Bunuel wrote:
What is the average (arithmetic mean) annual salary of the 6 employees of a toy company?


(1) If the 6 annual salaries were ordered from least to greatest, each annual salary would be $6,300 greater than the preceding annual salary.
x, x + 6300, x + 2 * 6300, x + 3 * 6300, x + 4* 6300, x + 5 * 6300
Avg = ( x + ( x + 5 * 6300 )) / 2
= ( 2x + 5 * 6300 ) / 2
No information about x
Insufficient

(2) The range of the 6 annual salaries is $31,500.
No information about individual salary
Insufficient

Combining both :
No new information, St 2) can be derived from St 1) itself
Insufficient

Hence, E.
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Re: What is the average (arithmetic mean) annual salary of the 6 employees  [#permalink]

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New post 04 Aug 2018, 06:25
sudarshan22 wrote:
ashisplb wrote:
1. We don't know individual values. So insufficient.

2. We know only the ranges. Value can be anything. So insufficient

1+2 salaries are 0,6300,12600,18900,25200,31500

Hence C

Posted from my mobile device

ashisplb why would anyone do a job for zero salary ?
In fact it could be any value for the least paid and the increment of 6300 then on


Hey sudarshan22,
I liked your thought process.
Why would anyone will do a job with no salary?

ashisplb - jokes apart. Good explanation.
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Re: What is the average (arithmetic mean) annual salary of the 6 employees  [#permalink]

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New post 04 Aug 2018, 06:37
jackspire wrote:
Hey sudarshan22,
I liked your thought process.
Why would anyone will do a job with no salary?

ashisplb - jokes apart. Good explanation.

jackspire
SC alert : The above highlighted sentence is incorrect as per SC standards though, "would" and "will" together - Duhhhh :dazed

Jokes apart, Thanks much. :grin: :thumbup:
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Re: What is the average (arithmetic mean) annual salary of the 6 employees  [#permalink]

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New post 05 Aug 2018, 23:36
sudarshan22 wrote:
jackspire wrote:
Hey sudarshan22,
I liked your thought process.
Why would anyone will do a job with no salary?

ashisplb - jokes apart. Good explanation.

jackspire
SC alert : The above highlighted sentence is incorrect as per SC standards though, "would" and "will" together - Duhhhh :dazed

Jokes apart, Thanks much. :grin: :thumbup:


Hey sudarshan22,
Thanks for the correction. ;)
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Re: What is the average (arithmetic mean) annual salary of the 6 employees  [#permalink]

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New post 17 Aug 2018, 08:09
Hi,

Stmt1 : Lets say we try to find the salary of six emp. Then it can be calculated by X(n)=X(n-1)+ 6300
So the sixth salary will be X(6)=X(1)+5(6300)
or X(6)-X(1)= 31,500
Insufficient.

Since 1 and 2 are both the same statements, So choice E

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Re: What is the average (arithmetic mean) annual salary of the 6 employees &nbs [#permalink] 17 Aug 2018, 08:09
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