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During morning walk, a man covers a distance of 3 km, 4 km, 3.5 km, 5km and 4.5 km from Monday to Friday, respectively. How much distance should he cover on two more days, so that his average per week becomes 4 km per day?
  • a)
    4 km
  • b)
    8 km
  • c)
    5 km
  • d)
    6 km
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
During morning walk, a man covers a distance of 3 km, 4 km, 3.5 km, 5k...
Let the distance covered in two more days be x km
⇒ (3 + 4 + 3.5 + 5 + 4.5 + x)/7 = 4
⇒ 20 + x = 28
⇒ x = 28 - 20 = 8
∴ Distance covered in two more days = 8 km
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Most Upvoted Answer
During morning walk, a man covers a distance of 3 km, 4 km, 3.5 km, 5k...
Calculation:
To find out how much distance the man should cover on two more days to achieve an average of 4 km per day for the week, we first need to calculate the total distance covered in the first five days.

Step 1: Calculate total distance covered in the first five days:
- Monday: 3 km
- Tuesday: 4 km
- Wednesday: 3.5 km
- Thursday: 5 km
- Friday: 4.5 km
Total distance covered = 3 + 4 + 3.5 + 5 + 4.5 = 20 km

Step 2: Calculate the remaining distance needed to achieve an average of 4 km per day:
- To have an average of 4 km per day for the week, the total distance for the week should be 7 days * 4 km = 28 km
- The distance covered in the first five days is 20 km
- Therefore, the remaining distance needed to achieve an average of 4 km per day is 28 km - 20 km = 8 km
Therefore, the man should cover 8 km on two more days to achieve an average of 4 km per day for the week.
Therefore, the correct answer is option B) 8 km.
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During morning walk, a man covers a distance of 3 km, 4 km, 3.5 km, 5km and 4.5 km from Monday to Friday, respectively. How much distance should he cover on two more days, so that his average per week becomes 4 km per day?a)4 kmb)8 kmc)5 kmd)6 kmCorrect answer is option 'B'. Can you explain this answer?
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