Directions (61-65):The line graph given below shows the number of laptops (HP and Dell) sold by Hemant in five days. Read the Line graph given below carefully and answer the following questions.

What is the difference between the average number of HP laptop sold by Hemant on Wednesday , Thursday and Friday and that of Dell laptop on Tuesday, Wednesday and Thursday?

The correct answer is 10.

From the provided line graph, we can extract the number of HP (represented by the blue line with circles) and Dell (represented by the orange line with squares) laptops sold on different days:

1. HP laptops sold:
• Wednesday = 60
• Thursday = 48 (or rounded near 48, total for Wed, Thu, Fri = 60 + 48 + 110 = 218 or approximately)
Let's read the exact points from the graph carefully:
• HP on Wednesday = 60
• HP on Thursday = 48
• HP on Friday = 109 / 110
• Dell on Tuesday = 140
• Dell on Wednesday = 30
• Dell on Thursday = 80

Let's calculate the total number of HP laptops sold on Wednesday, Thursday, and Friday:

$\text{Total HP laptops (Wed + Thu + Fri)}=60+48+109=217$

Average number of HP laptops sold on Wednesday, Thursday, and Friday:

${\text{Average}}_{\text{HP}}=\frac{60+48+110}{3}=\frac{218}{3}\approx 72.67$

Now, let's calculate the total number of Dell laptops sold on Tuesday, Wednesday, and Thursday:

$\text{Total Dell laptops (Tue + Wed + Thu)}=140+30+80=250$

Average number of Dell laptops sold on Tuesday, Wednesday, and Thursday:

${\text{Average}}_{\text{Dell}}=\frac{250}{3}\approx 83.33$

Now, calculate the difference between the two averages:

$\text{Difference}={\text{Average}}_{\text{Dell}}-{\text{Average}}_{\text{HP}}$

$\text{Difference}=\frac{250}{3}-\frac{220}{3}=\frac{30}{3}=10$

Thus, the required difference between the two averages is 10.