What is the ratio of the average production of Company X in the period 1998-2000 to the average production of company Y in the same period

Answer: Option A

Explanation:

Average production of Company X in the period 1998-2000
\begin{aligned}
= \left[ \frac{1}{3}*(25+50+40) \right] \\
= \left(\frac{115}{3} \right) \text{lakh tonnes} \\
\end{aligned}

Average Production of company Y in the period 1998-2000
\begin{aligned}
= \left[ \frac{1}{3}*(35+40+50) \right] \\
= \left(\frac{125}{3} \right) \text{lakh tonnes} \\
\text{Required Ratio =} \\
\frac{\frac{115}{3}}{\frac{125}{3}} \\
= \frac{115}{125} \\
= \frac{23}{25} \\
= 23:25

\end{aligned}