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13 Mar 2018, 07:03
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D
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Question Stats:
99% (00:36) correct
1%
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based on 102
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What is the average (arithmetic mean) of 7, 11 and x?
(1) The average (arithmetic mean) of 11 and x is 8
(2) The average (arithmetic mean) of 7 and x is 6
(1) The average (arithmetic mean) of 11 and x is 8
(2) The average (arithmetic mean) of 7 and x is 6
13 Mar 2018, 07:18
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We have to find (7+11+x)/3
for that we need only one variable x.
For that any one equation will only x as variable will suffice.
Statement 1: (11+x)/2 = 8 , x=5
Statememt 2 : (7+x)/2 = 6 , x=5
Both statement individually can give value of x .
For Answer is D
for that we need only one variable x.
For that any one equation will only x as variable will suffice.
Statement 1: (11+x)/2 = 8 , x=5
Statememt 2 : (7+x)/2 = 6 , x=5
Both statement individually can give value of x .
For Answer is D
