If the side length of a square is increased by 40% and its width is increased by 30%, by what percentage does the area of the new rectangle surpass the original square's area?

Explanation

When the length grows by 40%, it becomes 1.4 times the original, and the breadth increases by 30%, becoming 1.3 times the original. The new area is 1.4 × 1.3 = 1.82 times the original area, which means the area has increased by 82%.