The length of a rectangle is increased by 15% and its breadth is decreased by 20%. What is the effect on its area?\nOptions:\n(A) 1288\n(B) 1299\n(C) 1000\n(D) 10000\n(E) 9200
Let's think step by step below.
(E)
100 * 100 = 10000\n115 * 80 = 9200.

So, the final answer is (E)