Discussion

Explanation:

Since the price of saw timber is given in rupees per tonne and that of log is given in rupees per cubic metre, we cannot compare the two. Hence, using the given conversion, let us convert the price of saw timber in per cubic metre. The table will be as follows:

(Note: 1 tonne = $\frac{4}{3}$ = 1.33 cubic m)

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As in the above table, we can draw a similar table for saw timber and logs.

(Note: One tonne of plywood = $\frac{10}{7}$ cubic m = 1.43 cubic m and one tonne of saw timber = $\frac{5}{4}$ cubic m = 1.25 cubic m.)

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Hence, it can be seen that the difference is maximum for 1992.

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