What was the approximate percent increase in sales of cool-up in 1990 over its sales in 1989?

Answer: Option C

Sales of cool up in 1989 = 6 lakh bottles
Sales of cool up in 1990 = 19 lakh bottles
∴ Required percent
$$\begin{array}{rl}& =\frac{19-6}{6}\times 100\\ & =\frac{13}{6}\times 100\\ & =216\%\end{array}$$