We are given a laptop priced at ₹72,000, and two successive discounts of 20% and 25% are offered. Additionally, the customer has 2,850 reward points, where each point is worth ₹0.10.

Step-by-Step Solution:

1. Calculate the first discount of 20%: The first discount is 20% on ₹72,000. $\text{First Discount} = 72,000 \times \frac{20}{100} = ₹14,400$ The price after the first discount is: $\text{Price after 1st Discount} = 72,000 - 14,400 = ₹57,600$

2. Calculate the second discount of 25%: Now, apply a 25% discount on ₹57,600. $\text{Second Discount} = 57,600 \times \frac{25}{100} = ₹14,400$ The price after the second discount is: $\text{Price after 2nd Discount} = 57,600 - 14,400 = ₹43,200$

3. Calculate the value of reward points: The customer has 2,850 reward points, and each point is worth ₹0.10. Therefore, the total value of the reward points is: $\text{Reward Points Value} = 2850 \times 0.10 = ₹285$

4. Calculate the net selling price: The reward points will be deducted from the price after discounts. So, the net selling price is: $\text{Net Selling Price} = 43,200 - 285 = ₹42,915$

Thus, the net selling price of the laptop is ₹42,915.

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Do you want any further details or have any questions?

Here are 5 related questions:

1. How would the net price change if the discounts were applied in reverse order?
2. What if the reward points system offered ₹0.05 per point instead of ₹0.10?
3. If the store offered a flat 40% discount instead of two successive ones, how would that affect the final price?
4. How can a customer maximize savings by strategically using reward points?
5. What would happen if reward points could cover the entire price of an item?

Tip: Always apply successive percentage discounts one after the other, not by adding percentages together.