Forget conventional ways of solving math questions. In DS, Variable approach is
the easiest and quickest way to find the answer without actually solving the
problem. Remember equal number of variables and equations ensures a solution.
If x, y, and z are distinct integers, which integer is the median of the set {x, y, z}?
(1) x+y<z
(2) x>y
In the original condition we have 3 variables (x,y,z) and since we need to match the number of variables and equations we need 3 equations. Since there is 1 each in 1) and 2), E is likely the answer.
Using both 1) & 2) together we have x=1, y=-1, z=2 thus median=x, but if x=1, y=-10, z=-1 then the median=z. therefore the answer is not unique, and the conditions are not sufficient. The answer is E.
If you know our own innovative logics to find the answer, you don’t need to
actually solve the problem.
https://www.mathrevolution.com - The one-and-only World’s First Variable Approach for DS and IVY Approach
for PS that allow anyone to easily solve GMAT math questions.
- The easy-to-use solutions. Math skills are totally irrelevant. Forget
conventional ways of solving math questions.
- The most effective time management for GMAT math to date allowing you to
solve 37 questions with 10 minutes to spare
- Hitting a score of 45 is very easy and points and 49-51 is also doable.
- We're offering 20% additional discounts to GMAT club members for "PS+DS" and "All-In-One". When purchasing,please insert "TOPMATH2" as your coupon code.
- Unlimited Access to over 120 free video lessons at
https://www.mathrevolution.com/gmat/lesson - Our advertising video at
https://www.youtube.com/watch?v=R_Fki3_2vO8Your actual solution is very difficult to find in the quoted post and your advertisement. Can you please reduce the size of your advertisement text? or better put it in your signatures. This way your posts will be useful for people in this forum.
Also, put the quoted post in proper formatting, so that your actual post is clearly visible.