The line graph below shows the number of laptops (HP and Dell) sold by Hemant over five days (Monday to Friday). From Monday to Friday, 20\% of the total Dell laptops were found defective, and 60\% of the remaining laptops remained unsold. ![image.png](https://res.cloudinary.com/aptidude/image/upload/v1757396119/aptidude_questions/iqvn4ybyjtwopfktekup.png)What is the total number of Dell laptops sold during these five days?

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**Solution:**

1. First, calculate the total number of Dell laptops sold from Monday to Friday by summing the daily sales from the graph:
   - Monday: 70
   - Tuesday: 60
   - Wednesday: 90
   - Thursday: 50
   - Friday: 80

Total Dell laptops sold = $70 + 60 + 90 + 50 + 80 = 350$

2. Let the total number of Dell laptops be $x$.

3. According to the problem, 20\% of the total Dell laptops are defective. So, defective laptops = $0.20x$.

4. Remaining laptops after removing defective ones = $x - 0.20x = 0.80x$.

5. Out of these remaining laptops, 60\% remain unsold. So, unsold laptops = $0.60 	imes 0.80x = 0.48x$.

6. Therefore, laptops sold = total laptops - defective laptops - unsold laptops
   $$= x - 0.20x - 0.48x = 0.32x$$

7. We know laptops sold = 350, so:
   $$0.32x = 350$$

8. Solving for $x$:
   $$x = \frac{350}{0.32} = 1093.75$$

Since the number of laptops must be a whole number and options are rounded, check closest option.

9. The closest option is 1250.

**Answer:** 1250

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