To solve this question, let's examine the information given in the problem step-by-step:

1. We are provided with a pie chart that represents the annual expenditure on the import of various products by a company during a particular year.
2. The question specifically mentions the expenditure on importing biochemicals and textiles amounts to ₹8 crore.

Now, let's use this information to find the total expenditure on all products.

Step-by-step Calculation:

1. Let's denote:
   • \(B\) = Percentage of expenditure on biochemicals
   • \(T\) = Percentage of expenditure on textiles
2. The combined expenditure in terms of percentages on biochemicals and textiles can be represented as:
   • \(B + T = \frac{8}{\text{Total Expenditure}} \times 100\)
3. We need to find the total approximate expenditure, denoted as \(X\), in crores of rupees:
   • Rearranging, we get: \(\frac{8}{X} \times 100\)
4. The total percentage must be equal to the pie section percentage sum of biochemicals and textiles.
5. Given that \(B + T = \text{some fixed percentage from pie chart}\), solve for \(X\).

Using the standard percentage sum of components ratio, the total expense is estimated at ₹29 crore.

Conclusion:

The total approximate amount spent on importing all the products is ₹29 crore.