10 chairs and 5 tables were purchased for Rs. 17,500. If the average cost of a chair is Rs.1000, What is the average cost of a table?

Given:

10 chairs and 5 tables were purchased for Rs. 17,500.
Calculation:
Let the average cost of a table be $$x$$​.
10 chairs cost = $$10 \times 1000 = Rs. 10,000$$​​
5 tables cost = $$5x$$​​
Total cost = $$10,000 + 5x = 17,500$$​​

​$$5x = 17,500 - 10000 \\ \ \\5x = 7,500 \\ \ \\x = 1,500 ​​​$$​​

Thus, the average cost of a table is Rs. 1500.

Correct answer is (d).