The average of 15 numbers is 19. If the average of the first 10 numbers is 15 and the average of the last 6 numbers is 25, what is the 10th number?

Question

The average of 15 numbers is 19. If the average of the first 10 numbers is 15 and the average of the last 6 numbers is 25, what is the 10th number?
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Solution 1

Sure, let's solve this step by step.

  1. Understand the problem:

    • We have 15 numbers.
    • The average of these 15 numbers is 19.
    • The average of the first 10 numbers is 15.
    • The average of the last 6 numbers is 25.
    • We need to find the 10th number.

  2. **Calculate the total sum Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study prob

Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solv

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