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Sunday, August 31, 2008

GRE MATH PROBLEM OF THE DAY

The average (arithmetic mean) of x and y is 20. If z = 5, what is the average of x, y, and z?

17 comments:

Anonymous said...: d; September 2, 2008 at 1:27 AM
Ramya Pathi said...: d; September 2, 2008 at 1:28 AM
Anonymous said...: d is correct :); September 2, 2008 at 2:53 AM
Anonymous said...: D is the correct answer; September 2, 2008 at 1:29 PM
Unknown said...: i think d is correct; September 3, 2008 at 6:47 AM
Anonymous said...: d; September 4, 2008 at 12:56 AM
sravani said...: ans is d; September 4, 2008 at 9:41 AM
ksuraj1 said...: c is anwser; September 5, 2008 at 9:11 AM
Anonymous said...: i think the answer is d; September 6, 2008 at 5:00 AM
Unknown said...: d...; September 14, 2008 at 11:48 AM
Anonymous said...: d is the answer.; September 28, 2008 at 3:00 AM
Unknown said...: sabh ko yahi lag raha hai toh D hei hoga!; October 10, 2008 at 8:03 PM
Anonymous said...: D; November 2, 2008 at 11:45 PM
danish said...: (x+y)/2 = 20 => x+y=40;
x+y+z = 40+5 = 45;

mean = (x+y+z)/3 = 45/3 = 15;

ANSWER = D; November 11, 2008 at 7:59 AM
Anonymous said...: d is the correct; November 22, 2008 at 2:31 AM
mini said...: the answer is dddddddd; December 17, 2008 at 8:14 PM
Anonymous said...: x+y+z=45
45/3=15
C.15 is the correct answer; January 15, 2009 at 11:01 PM

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