Dear Experts,
Please help me with this question...
What is the value of y?
(1) 3|x^2 - 4| = y - 2
(2) |3 - y| = 11
My approach:
Statement 1: Insuff as there are 2 variables
Statement 2: Insuff
3-y = 11, 3 - y = -11
=> y = -8, 14
Both: Substituting values of y from statement no. 2 into statement no. 1 doesnt help to solve for y. Hence my answer is E, however the correct answer is C.
Please help,
Thanks in advance,
monusangeeta
Value of y?
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- alivapriyada
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even IMO E.Lets see what experts have to say on this!!monusangeeta wrote:Dear Experts,
Please help me with this question...
What is the value of y?
(1) 3|x^2 - 4| = y - 2
(2) |3 - y| = 11
My approach:
Statement 1: Insuff as there are 2 variables
Statement 2: Insuff
3-y = 11, 3 - y = -11
=> y = -8, 14
Both: Substituting values of y from statement no. 2 into statement no. 1 doesnt help to solve for y. Hence my answer is E, however the correct answer is C.
Please help,
Thanks in advance,
monusangeeta
-
- Master | Next Rank: 500 Posts
- Posts: 174
- Joined: Fri Apr 02, 2010 3:41 pm
- Thanked: 6 times
- Followed by:1 members
(1) 3|x^2 - 4| = y - 2
y=2+3|x^2 - 4|= always a +ve value, regardless of x = +ve or -ve.
NOT SUFFICIENT
(2) |3 - y| = 11
y=-8 if y is +ve
y=14 if y is -ve
NOT SUFFICIENT
1)+2) y is +ve so y=-8.
SUFFICIENT
C
y=2+3|x^2 - 4|= always a +ve value, regardless of x = +ve or -ve.
NOT SUFFICIENT
(2) |3 - y| = 11
y=-8 if y is +ve
y=14 if y is -ve
NOT SUFFICIENT
1)+2) y is +ve so y=-8.
SUFFICIENT
C
- shovan85
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Great work!!sanabk wrote:(1) 3|x^2 - 4| = y - 2
y=2+3|x^2 - 4|= always a +ve value, regardless of x = +ve or -ve.
NOT SUFFICIENT
(2) |3 - y| = 11
y=-8 if y is +ve
y=14 if y is -ve
NOT SUFFICIENT
1)+2) y is +ve so y=-8.
SUFFICIENT
C