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The average of 4 numbers is 15. If one number is increased by 5, what will be th
Practice Questions
Q1
The average of 4 numbers is 15. If one number is increased by 5, what will be the new average? (2019)
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Questions & Step-by-Step Solutions
The average of 4 numbers is 15. If one number is increased by 5, what will be the new average? (2019)
Steps
Concepts
Step 1: Understand that the average of 4 numbers is 15.
Step 2: Calculate the total of the 4 numbers by multiplying the average by the number of numbers: 4 * 15 = 60.
Step 3: Increase one of the numbers by 5. This means we add 5 to the total: 60 + 5 = 65.
Step 4: Calculate the new average by dividing the new total by the number of numbers: 65 / 4 = 16.25.
No concepts available.
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