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The average of 12 numbers is 60. If the average of the first 6 numbers is 70, wh

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Question: The average of 12 numbers is 60. If the average of the first 6 numbers is 70, what is the average of the last 6 numbers?

Options:

  1. 50
  2. 55
  3. 60
  4. 65

Correct Answer: 50

Solution: 

Total of 12 numbers = 12 * 60 = 720. Total of first 6 = 6 * 70 = 420. Total of last 6 = 720 - 420 = 300. Average of last 6 = 300 / 6 = 50.

The average of 12 numbers is 60. If the average of the first 6 numbers is 70, wh

Practice Questions

Q1
The average of 12 numbers is 60. If the average of the first 6 numbers is 70, what is the average of the last 6 numbers?
  1. 50
  2. 55
  3. 60
  4. 65

Questions & Step-by-Step Solutions

The average of 12 numbers is 60. If the average of the first 6 numbers is 70, what is the average of the last 6 numbers?
  • Averages – Understanding how to calculate the average of a set of numbers and how to manipulate totals based on given averages.
  • Basic Arithmetic – Applying basic arithmetic operations to find totals and averages.
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