Question

If the length of rectangel is decreased by 10% then what % shall it breadth be increased,so that area increased by/8%

Answer 1

$\frac{90}{100} + \frac{x}{100} = \frac{108}{100 } \\ 90 + x = 108 \\ x = 108 - 90 = 18$
breadth should increased by 18%