Correct Answer - Option 4 : Tuesday
Calculation:
Number of electric bulbs sold on Monday = 25
Number of electric bulbs sold on Tuesday = 100
Number of electric bulbs sold on Wednesday = 150
Number of electric bulbs sold on Thursday = 200
Number of electric bulbs sold on Friday = 75
Number of electric bulbs sold on Saturday = 90
Total number of electric bulbs sold in a shop during a week = (25 + 100 + 150 + 200 + 75 + 90)
⇒ 640
Average sale of the week = 640/6
⇒ 106.66 ≈ 100
∴ The daily sale closest to the average sale for the week is Tuesday