Answer: 2500
Step-by-step explanation:
Let’s assume that the cost price of the book is Rs. x. The selling price of the book would be Rs. 1.05x (since the man makes a profit of 5% by selling the book).
We know that the actual profit made by the man is Rs. 125. Therefore, we can write the following equation:
Selling price - Cost price = Actual profit
1.05x - x = 125
0.05x = 125
x = 2500
Therefore, the cost price of the book is Rs. 2500