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?
Correct Answer :
10
10
Solution :
Step 1: Read the values from the line graph
HP laptops sold:
Dell laptops sold:
Step 2: Find the average number of HP laptops sold
Average = (60 + 50 + 110) ÷ 3
= 220 ÷ 3 = 73.33
Step 3: Find the average number of Dell laptops sold
Average = (140 + 30 + 80) ÷ 3
= 250 ÷ 3 = 83.33
Step 4: Find the required difference
Difference = 83.33 − 73.33 = 10
Answer: 10
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