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GMAT Practice Test : Problem Solving

m is a positive integer >0. f(m) = 3m for every odd value of m, m=(1/2)m for every even value of m. f(9) * f(6) ?

a) 81
b) 64
c) 27
d) 9
e) 6

Written by raviraushanjha on August 10th, 2008 with 29 comments.
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29 comments

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Get your own gravatar by visiting gravatar.com docjraj
#1. August 10th, 2008, at 6:44 PM.

m is a positive integer >0. f(m) = 3m for every odd value of m, m=(1/2)m for every even value of m. f(9) * f(6) ???

=> {9*3} * {6*1/2}
= 27 *3
= 81.

Hence, answer is choice C.

Get your own gravatar by visiting gravatar.com nagaraj
#2. August 10th, 2008, at 8:11 PM.

A

Get your own gravatar by visiting gravatar.com Vijay
#3. August 10th, 2008, at 8:55 PM.

f(9) is 27 and f(6) is 3..27*3=81.
C

Get your own gravatar by visiting gravatar.com Nilam
#4. August 10th, 2008, at 10:23 PM.

A - 81

Get your own gravatar by visiting gravatar.com Ashish \saraswat
#5. August 10th, 2008, at 11:44 PM.

A

Get your own gravatar by visiting gravatar.com shilpa
#6. August 11th, 2008, at 2:58 AM.

A

Get your own gravatar by visiting gravatar.com raviraushanjha
#7. August 11th, 2008, at 5:33 AM.

The answer is 27.

C.

Get your own gravatar by visiting gravatar.com Jagadeesh.Pala
#8. August 11th, 2008, at 10:24 AM.

The ans is 81.

A .

Get your own gravatar by visiting gravatar.com jaspreet
#9. August 11th, 2008, at 12:51 PM.

81

Get your own gravatar by visiting gravatar.com ron
#10. August 11th, 2008, at 1:14 PM.

A .The answer .

Get your own gravatar by visiting gravatar.com Immanuel Ashok
#11. August 11th, 2008, at 1:23 PM.

The correct answer is A! i.e 81. How can it be C? Cud u pls clarify?

Get your own gravatar by visiting gravatar.com deepak
#12. August 11th, 2008, at 1:39 PM.

Ans is 81–choice A

Get your own gravatar by visiting gravatar.com docjraj
#13. August 11th, 2008, at 8:57 PM.

Oops, pretty stupid of me! The answer is choice A, of course.

I am the idiotic first poster. Solved the problem correctly, but marked the wrong choice. I guess this is how people lose marks in exams.

Get your own gravatar by visiting gravatar.com Deepak
#14. August 11th, 2008, at 9:59 PM.

A

Get your own gravatar by visiting gravatar.com Laura
#15. August 11th, 2008, at 11:15 PM.

A = 81

Get your own gravatar by visiting gravatar.com Praveena
#16. August 11th, 2008, at 11:43 PM.

A

Get your own gravatar by visiting gravatar.com kapil
#17. August 11th, 2008, at 11:55 PM.

A

Get your own gravatar by visiting gravatar.com Rajesh
#18. August 12th, 2008, at 10:12 AM.

f(9) =27 , f(6)=3
f(9)*f(6) = 27*3 = 81

Ans is A.

Get your own gravatar by visiting gravatar.com 4meonly
#19. August 12th, 2008, at 2:22 PM.

With A (81) from Russia :-)

Get your own gravatar by visiting gravatar.com raviraushanjha
#20. August 13th, 2008, at 12:25 AM.

Guys and Girls : the answer is 27. this is from the practice test 1.

The correct answer is 27 and not 81, that many of you are answering as.

Get your own gravatar by visiting gravatar.com raviraushanjha
#21. August 13th, 2008, at 12:26 AM.

there is a error in the sentence

The correct answer is 27 and not 81, that many of you are answering as.

can any one identify it !!!

Get your own gravatar by visiting gravatar.com neelima
#22. August 13th, 2008, at 11:26 AM.

A

Get your own gravatar by visiting gravatar.com Pawan
#23. August 13th, 2008, at 8:41 PM.

A

Get your own gravatar by visiting gravatar.com arpita
#24. August 14th, 2008, at 4:08 PM.

a

Get your own gravatar by visiting gravatar.com Basant
#25. August 15th, 2008, at 5:54 PM.

my ans is A

Get your own gravatar by visiting gravatar.com susan
#26. August 16th, 2008, at 12:23 PM.

For f(m) = f(9)*f(6) , m = 27 is one solution
But here they are asking for f(m) not m.
Answer is A.

Get your own gravatar by visiting gravatar.com Ramz
#27. September 8th, 2008, at 12:11 PM.

confusing ques..
if we want to find m here, answer is c coz f(27) = 81
otherwise the value of f(9)*f(6) is 81!!..A

Logically speaking, answer should be “A”!! and that is what i would have marked unless ques is changed a bit.

Get your own gravatar by visiting gravatar.com Shobhit Bhargava
#28. September 9th, 2008, at 1:30 PM.

if we take the question to be correct;
the answer is A… No two ways about it!

Get your own gravatar by visiting gravatar.com HellGod
#29. September 23rd, 2008, at 3:53 PM.

i think ans is A
but i think as they use the contradiction
in f(m) and m so ans can be different
but i m unable to find the logic behind other ans ..
they should provide right ans

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