Total expenditure on all these items in 2007 was approximately what per cent of the total expenditure in 2011 ?

Answer: Option C

Total expenditure in 2007
= Rs. (288 + 98 + 3.00 + 23.4 + 83) lakh
= Rs. 495.4 lakh
Total expenditure in 2011
= Rs. (420 + 142 + 3.96 + 49.4 + 98) lakh
= Rs. 713.36 lakh
Let 495.4 = x % of 713.36
Then,
$$\begin{array}{rl}& \Rightarrow \frac{x}{100}\times 713.36=495.4\\ & \Rightarrow x=\frac{495.40}{713.36}\times 100\\ & =\frac{12385}{17834}\times 100\\ & =69.4\%\\ & \approx 69\%\end{array}$$