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Class 9 Mathematics Medium Mcq English Medium

If every weight in a weighted average is multiplied by 13, what happens to the weighted average?

Question
If every weight in a weighted average is multiplied by 13, what happens to the weighted average?
It cannot be computed
It becomes {k} times larger
It stays the same
It becomes zero
Answer
It stays the same
Detailed Explanation
Multiplying every weight by the same positive constant cancels from numerator and denominator. — Examisthan.com
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