Difference between the length &breadth of a rectangle is 20 m

Difference between the length &breadth of a rectangle is 20 m. If its perimeter is 206 m, then its area is?

This problem repeats another one in the library (at most with different numbers), so it's left out of browsing.

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #26523