Find 3486/189 Choose one:
A) 18.44  B) 18.48  C) 18.42  D) 18.49  E) 18.41
First we make the denominator 200. i.e., we are introducing an error of 11 which is 11189=11711189=117 th of the denominator.   Now 3486200=17.433486200=17.43   But this answer is less than actual answer. So we have to increase it by 1/17th part of it.   117×17.43≃1117×17.43≃1   So final answer = 17.43 + 1= 
<gadget id="calculator">17.43 + 1</gadget>
<output>18.43</output>
18.43   18.44ctual answer= 18.44   18.44nswer:18.44
<result>A</result>
Find 3486/189