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31 Jan 2019, 01:26
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C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
62% (01:49) correct
38%
(01:27)
wrong
based on 203
sessions
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Date
Time
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Not Attempted Yet
If the arithmetic mean of five different numbers is 50, how many of the numbers are greater than 50?
(1) None of the five numbers is greater than 100.
(2) Three of the five numbers are 24, 25 and 26, respectively.
(1) None of the five numbers is greater than 100.
(2) Three of the five numbers are 24, 25 and 26, respectively.
31 Jan 2019, 01:37
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Total = 250, as average of 5 numbers is 50.
From statement 1:
Clearly insufficient.
From statement 2:
3 of the numbers are 24,25,26, then the sum of remaining 2 is 250-75 = 175.
Still insufficient.
Combining both, we can say that 2 numbers are more than 50.
C is the answer.
From statement 1:
Clearly insufficient.
From statement 2:
3 of the numbers are 24,25,26, then the sum of remaining 2 is 250-75 = 175.
Still insufficient.
Combining both, we can say that 2 numbers are more than 50.
C is the answer.
Archit3110
Major Poster
31 Jan 2019, 03:32
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Bunuel
#1
in sufficient as either all of no could be 50 or some no >50 & few <50
#2
75+a+b=250
a+b=175
a & b can be 87,88 or else any no where a+b= 175
in sufficient
from 1& 2
sufficient to say that a& b are two no >50
IMO C
