Hi
Shail1905,
When solving such questions on GMAT exam, it might take a lot of time to first understand what this equation might translate into and then working out the solution. I am sharing two quick and efficient formulas for such equations which you can use to quickly get to the answer in under 30 seconds.
1. \(|x - a| + |y - b| = r \Rightarrow \text{Area} = 2r^2\)
2. \(|px - a| + |qy - b| = r \Rightarrow \text{Area} = \frac{2r^2}{|pq|}\)
As given in the question mentioned, we can see the values of p and q are \(1/4\) and \(1/2\) and \(r = 4\). Putting these values in the formula, we get
\(\frac{2(4)^2}{\frac{1}{2} \times \frac{1}{4}}\) =>
\(2*16*8 = 256\) Option (E). You can see for yourself by applying it in different cases of such questions.
Here are some more questions similar to the one asked above:
- https://gmatclub.com/forum/in-the-x-y-plane-find-the-area-in-sq-units-of-the-region-enclosed-451343.html#p3661234
- https://gmatclub.com/forum/in-the-x-y-plane-find-the-area-in-sq-units-of-the-region-enclosed-451342.html#p3661233
- https://gmatclub.com/forum/in-the-x-y-plane-find-the-area-in-sq-units-of-the-region-enclosed-451335.html#p3660947
Hope this helps!
Shail1905
Hi Bunuel, can you assist with the answer?