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The average of 10 numbers is 50. If one number is increased by 10, what will be

Practice Questions

Q1
The average of 10 numbers is 50. If one number is increased by 10, what will be the new average?
  1. 50
  2. 51
  3. 52
  4. 53

Questions & Step-by-Step Solutions

The average of 10 numbers is 50. If one number is increased by 10, what will be the new average?
Correct Answer: 51
  • Step 1: Understand that the average of 10 numbers is 50.
  • Step 2: Calculate the total of the 10 numbers by multiplying the average by the number of numbers: 10 * 50 = 500.
  • Step 3: Recognize that one number is increased by 10.
  • Step 4: Add the increase to the total: 500 + 10 = 510.
  • Step 5: Calculate the new average by dividing the new total by the number of numbers: 510 / 10 = 51.
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