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The average of n consecutive numbers is 'a'. If any one number is deleted from these 'n' numbers, then the average of the remaining (n – 1) numbers cannot be less than
  • a)
    a - 4/5
  • b)
    a- 1/2
  • c)
    a- 3/2
  • d)
    a- 3/20
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
The average of n consecutive numbers is a. If any one number is delete...
Let x, x + 1, x + 2, ...., (x + n) be n consecutive integers, then their sum is
Assume after deleting any term, the new mean is , then their sum is 
Subtract equation (1) from equation (2) we get
So, the answer is a - 1/2
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Community Answer
The average of n consecutive numbers is a. If any one number is delete...
- 1) numbers will be:
(a - 1)
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DIRECTIONS for questions: Answer the questions on the basis of the information given below. Six friends, Das, Kumar, Lal, Ratan, Vinay, and Yuvraj, wanted to play a game of Ludo and decided to draw lots to determine the order in which they play. For this purpose, they took six pieces of paper and wrote down a different number, from 1 to 6, on each piece of paper and then put them all in a bag. Each of them picked a piece of paper from the bag, without peeping into the bag, one after the other. They then saw the numbers that each of them picked and decided the order in which they will play. After they finished the game, they made the following statements, all of which are true:Das : I picked a number which was greater than the number picked by Lal and the number four was already picked before I picked a number.Kumar : I was the third person to pick a number and the number two was already picked by that time.Lal : I picked a number after Ratan did and the number picked by Ratan was lower than mine.Ratan : I picked a number lower than the number picked by Yuvraj and I picked the number after Das did.Vinay : Ratan and I picked consecutive numbers and neither of us picked the lowest number.Yuvraj : I did not pick the highest number and nor was I the first to pick a number.Q. Which of the following statements is true?

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The average of n consecutive numbers is a. If any one number is deleted from these n numbers, then the average of the remaining (n – 1) numbers cannot be less thana)a - 4/5b)a- 1/2c)a- 3/2d)a- 3/20Correct answer is option 'B'. Can you explain this answer?
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