Monthly income of Suman in the year 2009 was approximately what percentage of the monthly income of Jyoti in the year 2010 ?

Answer: Option C

Monthly income of Suman in year 2009 = Rs. 29000
Monthly income of Jyoti in year 2010 = Rs. 35000
$$\begin{array}{rl}& =\frac{29000}{35000}\times 100\\ & =82.85\\ & \approx 83\%\end{array}$$