I asked the shopkeeper the price of a wristwatch. I found

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I asked the shopkeeper the price of a wristwatch. I found that I had just the required sum of money. When the shopkeeper allowed me a discount of 25%, I could bought another watch worth Rs. 940 for my younger sister. What is the price Which I have paid for my own watch?

1. Rs. 2700
2. Rs.1800
3. Rs. 2820
4. Rs. 3760

Correct Option: C

If I had Rs. 100
Discount = 25 = cost of my sister's watch

The cost of my own watch = 75
Thus the ratio of cost of my own watch to that of my sister's watch = 3 : 1
So the cost of my own watch = 3 x 940 = 2820