ds question

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ds question; contribute plzzz
Topic Started: May 9 2008, 06:45 PM (168 Views)
prakhar	May 9 2008, 06:45 PM Post #1
Novice Posts: 10 Group: Members Member #2,227 Joined: March 27, 2008	Is ax^3+bx^4=a+b? (1) ax^3=a (2) bx^4=b A. Statement (1) ALONE is sufficient but Statement (2) ALONE is not sufficient. B. Statement (2) ALONE is sufficient but Statement (1) ALONE is not sufficient. C. BOTH Statements TOGETHER are sufficient, but NEITHER Statement alone is sufficient. D. Each Statement ALONE is sufficient. E. Statements (1) and (2) TOGETHER are NOT sufficient.



majSandip	Jul 5 2008, 05:30 PM Post #2
Novice Posts: 5 Group: Members Member #2,246 Joined: April 4, 2008	Hi, My ans 'A' Sandip
	Lived by Chance


Rohan Bhutkar	Jul 29 2008, 08:26 AM Post #3
Novice Posts: 16 Group: Members Member #2,676 Joined: July 20, 2008	My ans is also A if only ax^3=a,then it means that x=1,which satisfies the given eqn. But if only bx^4=b is given,then x=+1 or x=-1. If x=-1, eqn is not satisfied as we'll get a=-a
	iF wIsHeS wErE wInGs , PiGs WoUlD fly...


maithilisurve	Aug 15 2008, 05:04 PM Post #4
Novice Posts: 1 Group: Members Member #2,756 Joined: July 22, 2008	EVEN I AGREE WITH 'A'



Romica Jian	Aug 18 2008, 04:32 PM Post #5
Novice Posts: 18 Group: Members Member #2,235 Joined: March 31, 2008	The answer has to be C to prove that ax^3+bx^4 = something What ix a or x happen to be fraction......... so need to make sure individual values are a and b cannot rely on X Edited by Romica Jian, Aug 18 2008, 04:35 PM.



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