Praveen sells a study table to Zoya at a loss of 10%, and Zoya sells the study table to Aadarsh at a profit of 25%. If Aadarsh purchased the study table for Rs. 2,250, then what was the cost (in) of the study table for Praveen?

Praveen sells the study table to Zoya at a loss of 10%.

Zoya sells the study table to Aadarsh at a profit of 25%.

Aadarsh bought the study table for Rs. 2,250.

​$$\text{Selling Price (SP)} = \text{Cost Price (CP)} \times \left(1 + \frac{\text{Profit\%}}{100}\right) or \text{Cost Price (CP)} \times \left(1 - \frac{\text{Loss\%}}{100}\right)$$​​

​Let the cost price for Praveen be Rs. P.
Zoya's cost price = 90% of P = 0.90P.
Aadarsh's cost price = 1.25 × (0.90P) = 1.125P.
Given Aadarsh's cost price = Rs. 2,250,
1.125P = 2,250.
P = 2,250 / 1.125
P = Rs. 2,000.​