Removing the problem as I heard that it is a copyright violation.
Or is it not ?
OG12 - Q125
This topic has expert replies
-
- Legendary Member
- Posts: 1448
- Joined: Tue May 17, 2011 9:55 am
- Location: India
- Thanked: 375 times
- Followed by:53 members
Cheers!
Things are not what they appear to be... nor are they otherwise
Things are not what they appear to be... nor are they otherwise
-
- Legendary Member
- Posts: 608
- Joined: Sun Jun 19, 2011 11:16 am
- Thanked: 37 times
- Followed by:8 members
Hi--rppala90 wrote:If ^ represents one of the operations +, -, and X,
is K ^ ( L + M) = (K ^ L) + (K ^ M) for all numbers K,L and M ?
(1) K ^ 1 is not equal to 1 ^ K for some numbers K.
(2) ^ represents subtraction.
Statement 1 -- since it is given that K^1 is not equal to 1^K for some values-- we know that ^ cannot be + or *. Now solving the equn we get
LHS= K-(L+M)
RHS= K-L+K-M = 2K- (L+M)
Now, if K=0 then LHS=RHS
else LHS is not equal to RHS
Therefore, LHS is not equal to RHS for ALL values of K,L,M
Since the question asks us to find the equality for ALLnumbers K,L and M -- Therefore the statement is SUFFICIENT---
Same is the case for Statement 2
SUFFICIENT
THE answer is D
- navami
- Legendary Member
- Posts: 540
- Joined: Sat Dec 20, 2008 7:24 pm
- Thanked: 37 times
- Followed by:6 members
Here ans of the question will be YES if ^ means 'x'.
From Option 1. We know the ^ Not Equal to ' x'
Option to directly says that ^ Not Equal to ' x'
Hence ans is D.
From Option 1. We know the ^ Not Equal to ' x'
Option to directly says that ^ Not Equal to ' x'
Hence ans is D.
This time no looking back!!!
Navami
Navami