The radius of a circle is 90 cm. If the radius of this circle is increased to 99 cm, then what will be the percentage increase in the area of this circle?
Vijendra walks a certain distance, say X meters, from is home towards the west. Then he turns left and walks 23metres. After that , he turns left and walks 36metres. Then he turns left again to walk 23metres. He finally turns left and walks 18metres to reach his house. Find the value of X.